Magic Mushrooms: What You Need To Know About These Edible Fungi
"And I thought the song Ebony and Ivory was about truffles." Meathead
There are hundreds of mushrooms suitable for cooking, but you should never eat a mushroom you find in the wild unless you know exactly what you are doing. Some can kill.
Almost all storebought are delicious when simply sautéed in butter, grilled, or roasted. They make fine sauces and toppings, and can be chopped up and mixed with onion, garlic, herbs, and oil to make duxelle, a remarkable condiment and stuffing. Then there is cream of mushroom soup.
Mushrooms are fungi, the same kingdom of organisms that include molds and yeasts. They are fleshy flowers that grow from a large underground root system called mycellia and they are very efficient at decomposing organic matter. Most reproduce by releasing spores from their gills.
They come in many shapes, umbrellas, balls, trumpets, cones, ears, and spaghetti, to name a few. Buy mushrooms that are as fresh as possible. If they are wet or there is water in the package, pass. Try to pick unblemished mushrooms, but older mushrooms are really fine so long as they are not slimy. Many stores sell sliced mushrooms. Because they have more surface area exposed to air, they oxidize more quickly and have a shorter shelf life. Also, when you rinse them, they absorb more water which means they take longer to sauté.
Store fresh mushrooms uncut and unwashed in a paper bag in the refrigerator. If you store them in plastic bags, plastic wrap, or an airtight container they will deteriorate more quickly. Fresh mushrooms have a refrigerator life of up to two weeks depending on how fresh they were when you bought them and how you store them. Most mushrooms do not freeze well.
If the stems are woody, remove them, freeze them, and use them to make stocks. Otherwise just slice off the fibrous bottom of the stem and discard it.
Never use canned mushrooms if the can is bulging or dented, and be wary of home canned mushrooms.
Some great cooking mushrooms
Each year it seems as if there are new mushrooms in the produce section of my grocery. Experimenting with them is great fun.
Button mushrooms a.k.a. white mushrooms. These are the typical white grocery store mushroom with an umbrella shaped cap and dark brown gills. Versatile, firm, mild, and slightly meaty they don't get the credit they are due. According to Czarnecki (more on him below), author of the book Portobello Cookbook, they are the same genus and species as cremini and portobello, Agaricus brunnescens, formerly known as A. bisporus, only they are a paler variation. The umbrella head of common button mushrooms opens as they age exposing the gills. Most cooks tell you to select for those that are closed, Czarnecki says the exposed gills bring slightly more flavor. When tasted side by side with rare exotic expensive mushrooms they are friendly and familiar, and distinctive, and not pushed aside by their uptown cousins. Cultivated, inexpensive.
Chantarelles. These are funnel shaped with pronounced wrinkles that look like gills on the outside. They are usually orange to yellow when fresh, and when cooked get rusty brown on the outside, and the creamy insides get tan. Mild, they have a subtle nutty character and a slippery texture when cooked in butter, and they can be gritty because it is hard to get all the sand off them. Some say they have an apricot scent when fresh. Foraged, expensive.
Creminis or baby bellas. These are a tan version of the cultivated common white button mushroom, and with age they are known as portobellos. They are a tiny bit richer in flavor, earthier, and meatier. The stems are usually fine eating. Cultivated, inexpensive.
Enoki. You've probably seen these swimming in Chinese broths. Elegant thin golden strands with a tiny round cap, these are usually sold as bundles joined at the base. Raw they look and smell a bit like bean sprouts. Sizzled in butter or stirred into soups they wilt into limp tender spaghetti-like strands, there is a vegetal sweetness, an exotic flavor most unique among common mushrooms. I love them. Cut off the root and separate them. Cultivated, affordable.
Hen of the woods or maitakes. A loose bundle of black jagged thin edges almost reminiscent of a pine come, they join at the base to form a thick milky white core of stems. Found at the base of trees and on the ground. They are slightly crunchy, with a distinctive, strong, woodsy character. Foraged and cultivated moderately expensive.
Matsutake. Revered in Japan, the "pine mushrooms" are agonizingly difficult to find in pine forests. Before their caps open to form umbrellas, the stems are disproportionately thick and long, phallic enough to make a shy Japanese girl cover her mouth and giggle. They can grow aup to 8" across the top. They are firm and vaguely reminiscent of cinnamon. They can be found on the US West Coast, and Czarnecki calls them his favorites. Foraged. Very expensive.
Morels. The cap is a sponge like cone, often dark brown to almost black, the darker the better. They are hard to cultivate and are almost always collected from the wild in the spring, so they are expensive. Fresh morels are almost never available in stores, but they can be purchased online or in farmers markets. Dried morels can be found in many groceries or purchased online. They range from thumb sized to spice jar size. They are among the tastiest of all mushrooms, smoky, meaty, nutty, and rich. They are often breaded and fried, but they make the most amazing cream of mushroom sauces. Morels should never be eaten raw. They contain a natural substance that can give you a pretty severe stomach ache when raw, but it is destroyed by cooking.
Morels are hollow, so slice them in half lengthwise so the inside can be cleaned. Because they have a lot of pockets, you need to rinse and soak morels thoroughly with cold running water in a colander sitting in a bowl. Empty the bowl frequently and when the rinse water no longer has dirt or bugs (yes, fresh morels occasionally have bugs), dump them into the bowl and cover with fresh, cool water. Add about 1/4 teaspoon salt per cup of water. Soak for about 1 hour. Drain and pat dry gently. Mostly foraged, very expensive.
Oyster mushrooms. Fan shaped to tuba shaped, they are usually white and tan, and the gilled stems can look gray. The upper tips are fragile and break easily. The smaller the better, they have a peppery flavor and some people say they resemble oysters in taste. I don't get oysters other than there is a resilience, like very soft rubber, that makes their texture among my favorites. Frequently served in Chinese restaurants. Cultivated, moderately priced.
Porcini or cepes. Large Disney character toad stools with thick stems and smallis reddish brown umbrella caps. When raw they have a strong wet woodsy aroma. Easy to slice the stems have a creamy interior. When cooked in butter they are firm, with a robust sharp, perhaps slightly bitter flavor. Foraged, expensive.
Portobellos a.k.a. portabellas. These are now stocked in many groceries. The shaggy dark tan to brown tops can be up to 8" in diameter, like the ones above, and the gills are dark brown and up to 1/4" thick. When fresh they snap when bent. They have a robust beefy flavor, especially the gills, they are great on the grill, and can be served on a bun like a burger. They really soak up marinades. A definite step up from buttons. The stems tend to be woody and are usually removed, but if they are not tough, the are excellent for duxelles. Cultivated, inexpensive.
Shiitakes. Tan to brown umbrella shaped with tan gills and curving stems, the caps can grow as big as your hand, but most are 1 to 2" across. Meaty, they are popular in Chinese cooking and have a pleasing resilient chewy texture similar to oyster mushrooms. They are subdued although some call the flavor smoky or woodsy. Occasionally the stems are woody and need to be removed. Foraged, moderately expensive.
Truffles. Called by French chef Jean Anthelme Brillat-Savarin "the diamonds of the kitchen", truffles grow underground and they are more or less round and lumpy, without a root. They are usually golf ball size, although they can grow up to 6" in diameter. They are seasonal, hard to find, and almost impossible to cultivate, making them the most expensive mushroom. Most of the world's most desirable come from Northern Italy and the Perigord region of France. There are two distinct types, black and white (whites are shown here, courtesy of Oregon White Truffle Oil). The black truffle is more common in Europe and the white nmore common in Oregon, if that is the appropriate term for something so rare, and less expensive, if that is appropriate for something so dear. Remind me to tell you about the time I bought half a dozen in Italy from a hotel manager and how I smuggled them past US customs.
They emit a strong, distinctive musky, animal scented gas that can be overwhelming to some and an aphrodisiac to others. Foragers use specially trained dogs to hunt for them since they can smell them underground easily. Female pigs are occasionally used because they are naturally aroused by the scent, but they too often eat the prize, so they have been replaced by canines.
The best truffles are fully ripe. Unripe truffles are hard like potatoes. When they ripen they get soft and have veins on the interior.Biting into a truffle is underwhelming. Nothing special. It is the gases that create the drama, and they are released when digested, or when shaved or shredded over hot food like pasta or risotto. Chefs rarely cook with truffles, they use them as a potent garnish. The ephemeral flavors can also be extracted into oils which are used to drizzle over finished dishes, not for cooking. Sometime before you die, you need to have some shaved over my Crack & Cheese recipe.
Czarnecki says "Oregon white truffles (Tuber gibbosum and oregonense) are similar to Italian white truffles (Tuber Magnatum Pico) in that they share a garlicky-cabbage aroma. They are not as intense as the Italian truffles, however. But what they lack in intensity they make up for in aroma complexity. The Oregon white truffle oil has floral and herbal overtones while the Italian truffles are stronger and exhibit overtones of musk, garlic, and cabbage. This has been demonstrated in side-by-side comparisons of their volatile organic compounds (gases). Oregon white truffles compared to Italian white truffles is like the difference between Pinot noir and Cabernet sauvignon, respectively. Oregon black truffles (Leucangium carthusianum), on the other hand, are very different from French Perigord truffles (Tuber Melanosporum). The Perigord black truffle has a pleasant odor of earth, must, and iodine. The Oregon black truffle has an odor of mango, chocolate, and earth. Those sweet odors, especially when made into oil, are intriguing ingredients for desserts." A majority of black truffles are now cultivated while almost all white truffles are wild, they are all very expensive with whites slightly more dear.
Finally, a word about "truffle" oil. Czarnecki sells the real deal, premium olive oil scented with real truffles. Almost all "truffle oil" is made by adding chemicals that smell like truffles. Read the label. If it says "truffles and oil" it's the real deal. If it says Oil and truffle aroma" it is ersatz.
This page was revised 3/20/2014
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