Many restaurants have their own "Secret Sauce". A typical blend is made of ketchup, mayo, mustard, and perhaps sweet-sour pickle relish. In the Pacific Northwest there is a popular sauce called "Goop" made with mayo, mustard, sour cream, and pickle relish. McDonald's is famous for it's Big Mac with its "Special Sauce." Here's how to make it at home. Here's my favorite Hamburger Sauce, which I call "Glop". I've been known to use it on both burgers and fries. It's got a mild kick.
These recipes were created in US Customary measurements and the conversion to metric is being done by calculations. They should be accurate, but it is possible there could be an error. If you find one, please let us know in the comments at the bottom of the page