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Grill It In A Cast Iron Skillet

What’s old is new again

With all the conveniences of modern outdoor cookery like thermostats and remote controls via smart phone, why would anyone want to cook with something so primitive as cast iron?

Because it’s simple, and it works. Even though WiFi-enabled pellet cookers, sous vide machines, pressure cookers, slow cookers, multi-cookers, and Teflon pans and have made inroads into the cooking equipment we use on a daily basis, cast iron has never left. Pitmasters, home cooks, and professional chefs still rely on cast iron pans for essential daily cooking techniques like searing meats, frying, sautéing, simmering, braising, stewing, and baking. Other cookware can handle some of these tasks, but nothing delivers a dark, even sear on the surface of food like a cast-iron pan. The Iron Age is still with us (click here to share this bit of wisdom on Twitter). In fact, cast-iron cookware is enjoying a renaissance. Modern companies are meeting increasing demand for cast iron with a new breed of smoother, lighter, higher-quality pans that harken back to the vintage cast-iron pans of old.

stargazer cast iron mold

How cast iron is made

Cast iron is pretty cheap and easy to manufacture. Cooks all over the world have relied on it for centuries. Archaeologists believe that the first iron was cast into agricultural tools and cookware back in the 5th century BC in China. Later, around the 15th century in England, iron was also cast into cannons and shot. Today, cast iron is still widely used around the world for everything from machine gear boxes to your car’s brake rotors (yep, that’s why your rotors rust).

Castings for cookware are made from gray iron, an iron-carbon alloy consisting of 97 to 98% iron, 2 to 4% carbon, and 1 to 3% silicone. The silicone helps prevent corrosion, and the carbon improves strength by forming graphite, a network of flakes. That graphite content is what gives gray iron its name and color. How does it become a cast-iron skillet? First a mold is made out of moistened sand that’s bonded together using clays, chemical binders, or polymerized oils such as motor oil. The gray iron is then melted in a furnace, poured into the negative cavity of the mold, and allowed to cool. When the sand mold is broken off, the iron casting is removed, the surface sandblasted or sometimes machined, and finally the pan is oiled or “seasoned.”

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stacks of cast iron pans

Modern vs. vintage cast iron

Metal surfaces, no matter how smooth they look to the naked eye, are not really smooth. Under a microscope, you can see tiny imperfections, irregularities, and uneven surfaces. Many cast iron pans have a pebbly surface from the molds in which they are cast. Those bumps act as islands, tenaciously holding onto bits of cooked food, so early manufacturers of cast-iron cookware such as Griswold and Wagner machined away that roughness to make the cooking surface smooth. When heated with oils or melted fats, the fat builds up on the surface into a nice thick seasoning that can be nearly nonstick. That’s one reason why vintage cast-iron pans are highly sought after online and in garage sales: they’re smoother and tend to be less sticky.

But the extra step of milling cast-iron is time-consuming and expensive. Griswold and Wagner are no longer in business. The cast-iron manufacturers that survived, such as Lodge and Victoria, skipped that step to stay in business. Most cast-iron pans sold today are not milled, and these pans often need to be re-seasoned to keep food from sticking to the cooking surface.

Fortunately, there’s a new breed of cast-iron manufacturers in town. Companies like Butter Pat, Field, FINEX, Lancaster, Smithey, and Stargazer have gone back to the old methods. They produce machined or milled cast-iron pans made of high-quality gray iron. Their pans are more expensive but perform more like the vintage Griswold and Wagner pans. And they’re not only smoother. Many of them are thinner, lighter, and stronger than your everyday cast-iron skillet.

hotspots shown on paper in cast iron skillet

MYTH: Cast iron heats evenly

BUSTED. People often cite the even heating of cast iron as one of its strengths. The truth: cast iron is only a fair heat conductor, about four times slower than aluminum. That means it takes a while for all areas of the pan to get hot, and it develops hotspots. When you put a cast-iron pan on a grill, campfire, or stovetop, it will be hotter near the hottest parts of the heat source but cooler further away from them. In the picture here, burn marks on the paper show where the heat is concentrated, matching the circular ring of fire from the stovetop burner. Eventually most of the pan gets hot enough to sear in, but if you want a cast-iron pan to heat evenly, the best method is to preheat it with consistent, even heat. An oven, pellet smoker, or grill set up for 2-zone cooking will surround a cast-iron pan with the most uniform heat. To help overcome the heat distribution shortcomings of cast iron, always preheat your pans before cooking in them.

colonial kitchen

What makes cast iron so good for cooking

You know those giant cauldrons hanging over campfires an old black and white photographs? Those pots were made of cast iron, and they lasted for decades because cast iron is nearly bombproof. Regardless of the machining process, cast iron cookware is hard to destroy, and it can withstand extremely high temperatures, like those in a raging wood fire. Even if you burn off the seasoning, you can resuscitate a cast-iron pot or pan by re-seasoning it. You can’t do that with Teflon. Once the Teflon coating goes, the pan is toast. Plus, burning Teflon is toxic.

Now, that doesn’t mean cast-iron is the one cookware to rule them all. In a perfect world, the ideal pot or pan would be made from a material that does everything well: it would heat up quickly, distribute the heat evenly, retain the heat well, and respond quickly to changes in temperature. Unfortunately, no such material exists. To harness the unique heating properties of each metal, today’s popular clad-metal pans fuse together multiple metals. They usually have a cooking surface of stainless steel because SS is durable, nonreactive, and easy to clean. But SS doesn’t conduct heat very well, so it’s sandwiched around an inner layer of either aluminum or copper, which are among the top three heat conductors on the planet (diamond is #1, and silver is up there too, but who can afford a solid silver skillet?). Clad-metal pans heat up fairly quickly and respond well to temperature changes. But because the pan’s material conducts heat so well and is less dense, it can’t retain the heat during searing.

Where clad-metal pans fall short, cast-iron excels. Heat retention and total heat capacity are among cast-iron’s most useful cooking properties. This type of metal holds and transmits enormous amounts of heat, which is why a cast-iron pan is unparalleled for producing a dark, flavorful sear on meat. The pan’s total heat capacity also means that when you add cold food to a hot cast-iron pan, the pan recovers heat quickly without a sharp drop in temperature. The downside of heat capacity and heat retention are that once a cast-iron pan heats up, it takes a while for it to cool down. Even the handles can remain blisteringly hot for quite some time after removing a cast-iron pan from the heat source. Solution: You can buy a sleeve for the handle, or use a mitt or folded up towel.

Part of what makes cast iron such a heat powerhouse is its high energy “emissivity.” Cast iron not only retains energy well but excels at radiating infrared energy. By contrast, stainless steel pans have low emissivity: food has to be in contact with a stainless pan for a significant amount of heat to be conducted to the food. But cast iron, especially when it’s dark and well-seasoned, emits more radiant energy, allowing food to be cooked indirectly, not just by conduction. Try this test: heat stainless steel and cast-iron pans side by side on your stovetop. Hold a hand above each and chances are (all other factors being equal) the cast-iron pan will feel hotter. The cast iron is radiating (emitting) more energy. That helps heat your food. The high emissivity of cast iron is particularly useful if, say, you want to cook the top of something like a pizza but you don’t have a broiler or another source of top heat. You can preheat a cast iron griddle or pan, suspend it over the pizza (perhaps on an oven rack), and the pan will radiate and cook the top of the pizza.

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cast iron griddled pork chop

What to cook in cast iron

Cast iron has a high melting point (2060-2200°F), making it excellent for campfire cooking and high-heat searing. Its superior heat retention also makes it a good choice for frying and long-cooked dishes like stews and braises. And it works on induction burners and can go from stovetop to oven. To help prevent the pans from rusting, some cast-iron is enameled, a type of glass that eliminates a few of cast-iron’s shortcomings: enamel covers up cast-iron’s reactivity, it jettisons the need for seasoning, and it makes the cooking surface smoother and easier to clean. The French companies Le Creuset and Staub only make enameled cast iron. The downsides? Enamel protects the iron from rusting, but it slows down the pan’s heat conductivity (and cast-iron is already on the low side). Plus, enamel can scorch, which means saying goodbye to that smooth nonstick surface. What’s worse, enameled surfaces can crack or chip with excessive force or sudden temperature changes, like when you deglaze a hot pan with cooler liquid. Bacteria can grow in any crack, so in many commercial kitchens, enameled iron cookware is prohibited.

cast iron Dutch oven and coals

We like enameled cast-iron Dutch ovens for stews, braises, and pot roasts because the food is acidic. But for most outdoor cooking, high-heat searing, and everyday stovetop tasks, we prefer “bare” cast-iron. It has a zillion uses. Cast-iron skillets are perfect for pan-roasting pork, searing steaks, shallow frying chicken and fish, baking cornbread, and even crushing peppercorns and pounding chicken breasts. Cast-iron Dutch ovens can be used for deep-frying, braising, stews, beans, chili, campfire cooking, desserts, and baking biscuits and bread. Cast-iron griddles easily handle burgers, fish, bacon, fried eggs, hash browns, pancakes, French toast…just about anything a short-order diner cook would make on a flattop.

cast iron zucchini and mint pizza

The most basic and versatile cast-iron pan to keep on hand is a 10 or 12″ skillet. Use it to make our Red Eye Gravy with Ham. Or bake up some Killer Skillet Corn Bread. Make Seared Salmon on a Salad in a cast-iron pan. If you want some plant-based barbecue, try Barbecued Maitake Mushroom Steaks. There’s so much you can do. Whip up our Ratatouille cooked in cast iron on the grill. If you have a Dutch oven, make Fried Chicken on the Grill instead of stinking up the house with messy fry oil. Or sear a few Quarter Pounder Diner Burgers on a cast-iron griddle. A griddle is the second most useful cast-iron pan in your arsenal. That’s why we devote an entire section of the site to griddle grilling. In recent years, griddle grills and grill toppers have become wildly popular among backyard cooks. Check out that page for tons of cast-iron cooking tips, recipes, and reviews.

Yes, you have to maintain the seasoning, but that is simple. Click here for our complete guide to seasoning, cleaning, and repairing rusted cast iron. As far as we’re concerned, the only real downside to cast-iron cookware is its heavy weight. If that’s a problem for you, sleuth out and restore some vintage cast-iron or invest in one of the lighter, premium cast-iron pans from companies like Stargazer or Butter Pat. Then, to keep your cast-iron cookware purring like a kitten, think of it like a car engine: keep it well-oiled and use it often.

carbon steel pan

Cast Iron Vs. Carbon Steel Pans

The differences here are subtle but important. Cast iron contains 2 to 4% carbon while carbon steel contains only about 1% carbon. That difference in carbon gives carbon steel a more uniform grain structure, which strengthens the metal and makes it easier to form it into smooth, thin pans. That’s why carbon steel pans weigh less than cast-iron skillets.

Lighter weight and a smoother cooking surface are the most important differences between carbon steel and cast-iron pans. Otherwise, they perform very similarly. These two metals are both only fair heat conductors with poor heat distribution. That means both pans develop hot spots that match the heat source (eg. a circle of flame on a gas burner will create a circular hot spot on both pans). Both cast iron and carbon steel are prone to corrosion and reacting with acidic ingredients, making them less suited to long-simmered tomato sauces and wine reductions. On the plus side, both cast iron and carbon steel develop a nearly nonstick “seasoned” surface with repeated sautéing, frying, and cooking in oil. Both can go from stovetop to oven, and both pans work on induction burners. Most importantly, both pans excel at heat retention, making them excellent for searing steaks and crisping the skin on chicken or fish.

A few minor differences: carbon steel pans usually have sloped sides, while most cast iron pans have straight sides. That makes it easier to flip food and saute in a carbon steel pan. But the straight sides and depth of a cast-iron pan make it better suited to shallow frying chicken. Carbon steel pans also tend to cost a bit more than your basic cast-iron skillet, but maybe the lighter weight is worth it to you.

Bottom line? If you’re in the market for some new pans, a carbon steel pan and/or griddle is nice to have on hand for sautéing and searing. It’s lighter than cast iron, which is one reason why most restaurant chefs cook with more carbon steel than cast iron.

How To Season, Clean, and Repair Cast-Iron Cookware


Dave Joachim

There's only one thing to remember with cast-iron cookware: maintain the seasoning. All the tips about cooking and cleaning cast-iron are meant to maintain its seasoning. Find out what seasoning is, how to build it up, how to clean cast iron, and how to repair it if it's badly rusted. We bust a few myths along the way.

Frying Is Best Done On The Grill!



Frying is a project for your grill. If you do it on your grill, who cares if there are spatters, smoke, and there is no smoke alarm. Here are some articles and recipes that will show you how to make great fried chicken, onion rings, and more on your grill.
Frying chicken

Make This Fried Chicken Recipe On The Grill And Skip The Mess!



Fried chicken is easy to do on the grill with no mess, no smell, and no smoke alarms. Plus, the grill grate serves as a rack for drip drying the fried chicken. Give it a try with this recipe roughly based on KFC fried chicken!
Sliced elk steak

Elk Steak Seared In Cast Iron Is As Simple And Delicious As It Gets


Malcom Reed

YouTube BBQ star Malcom Reed joins us again with his super simple, super delicious recipe for elk steak. Season it with salt and pepper, sear it in a cast iron pan over hot coals, then add some butter, garlic, and rosemary, basting the steak with melted butter as it cooks. Doesn't get much easier--or better--than that!
Hamburger with cheese on a bun

The Ultimate Diner Burger Recipe (a.k.a. The Wimpy Burger a.k.a. The Smash Burger)



Create the skinny, crispy edged burgers that you love at diners with this simple recipe for the Wimpy burger. Infinitely better than any mass produced quarter pounder, these homemade diner-style burgers are small disks, 4 ounces or less, pressed flat and cooked on a griddle to maximize the flavor and crispness.
Seared salmon on a salad

Simply Delicious Seared Salmon On A Salad



Take ordinary salads over the top with this tested recipe for crispy crusty salmon. Fresh salmon is cooked on the grill with a griddle until it's interior is perfectly cooked and buttery while the skin is crackling crisp. The fish is then served on dressed romaine lettuce along with grated parmesan and garlic croutons.
Skillet cornbread topped with butter

Fluffy Old Fashioned Skillet Cornbread



Cornbread is a classic sidekick for BBQ with good reason and this is the perfect recipe for your next cookout. Classic cornbread is baked in a cast iron skillet greased with bacon fat, lard, or other meat grease. The hot black metal creates a brown crunchy crust that really amps up the flavor and texture.
Grilled ham steak topped with redeye gravy

Redeye Gravy With Ham, A Southern Classic



Ham and Redeye Gravy is a hearty Southern breakfast traditionally made in a cast iron pan designed to charge Mom and Dad for a hard day of work. Ham and coffee are the core ingredients, but there are variations on the theme.
Grilled ratatouille over pasta

Ratatouille Tastes Better Grilled



Grilled ratatouille takes it up a notch. You may never make ratatouille the old way again! Serve it over pasta, couscous, or rice.
Paella cooking on the grill

Paella Recipe: The National Dish Of Spain Began Outdoors And You Can Cook It Outdoors



Paella, the national dish of Spain, is a fabulous dish for preparing on the grill. A fabulously flavored rice dish, paella has many variations including this chicken and sausage paella recipe. Presented with fanfare and flourish with a pinwheel of colors and shapes, paella is a sure fire showstopper for your cookouts.

Barbecued Maitake Steaks Will Change the Way You Think About Mushrooms


Dave Joachim

Yes, you can smoke mushrooms on the grill the same way you smoke brisket. The key is a revolutionary new press-and-sear technique that creates a dense, meaty texture and satisfying browned flavor. This smoked maitake mushrooms recipe is a deeply satisfying barbecue dish—truly eye-opening for hardcore meat eaters.

Why You Need To Start Griddle Grilling


Paul Sidoriak

Cooking on a hot griddle, flattop, or plancha is a great way to get an all-over flavorful sear. And it is fun! Here's a guide to everything you need to know for griddle grilling!
Griddle grilled crab cake topped with aioli

Mouthwatering Crab Cakes, Griddle Grilled To Perfection


Clint Cantwell

Jumbo lump crab meat shines brightly in this recipe for griddle grilled crab cakes with rosemary aioli. Exceptional crab cakes begin with high quality crab, gently blended with a minimum amount of other ingredients so that the crab remains the star of the show, then finished on the grill.

The Definitive Guide to the Best Grill Grates



Which grill grate is best: stainless steel, cast iron, enamel coated, plated wire, or cast aluminum? The answer may surprise you. This definitive guide explains which grill grates are the most durable, deliver the most heat, and are the easiest to clean and maintain in your grill.

How to Keep Food From Sticking to Your Grates



Don't you hate it when food sticks to your grill grates? This article explains how to prevent it: keep your grill grates clean and use the right temperature for the food you're cooking. Maybe lubricate the food (not the grates) with some oil. Some fish baskets and grill toppers may also help prevent sticking.

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Published On: 2/26/2020 Last Modified: 4/23/2021

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Our Favorite Backyard Smoker

The amazing Karubecue is the most innovative smoker in the world. The quality of meat from this machine is astonishing. At its crux is a patented firebox that burns logs above the cooking chamber and sucks heat and extremely clean blue smoke into the thermostat controlled oven. It is our favorite smoker, period.
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Fireboard: The Ultimate Top Of The Line BBQ Thermometer

Fireboard Labs Product Photo Shoot. Kansas City Commercial Portrait and Wedding Photographers ©Kevin Ashley Photography

With the ability to monitor up to six temperatures simultaneously with either Bluetooth or Wifi on your mobile phone, tablet, or computer, Fireboard is the best digital thermometer we’ve tested.
Click here to read our detailed review

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3 burner gas grill

The Broil King Signet 320 is a modestly priced, 3-burner gas grill that packs a lot of value and power under the hood. Broil King’s proprietary, dual-tube burners get hot fast and are able to achieve high, searing temps that rival most comparatively priced gas grills. The quality cast aluminum housing carries a Limited Lifetime Warranty.

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Comprehensive Temperature Magnet With 80+ Important Temps temperature magnet
Winner of the National BBQ Association’s product of the year award. This 8.5″ x 11″ magnet contains more that 80 benchmark temperatures for meats (both USDA recommended temps as well as the temps chefs recommend), fats and oils, sugars, sous vide, eggs, collagens, wood combustion, breads, and more. Although it is not certified as all-weather, we have tested it outdoors in Chicago weather and it has not delaminated in three years, but there is minor fading.

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