Hennessy will not be the death of you, or your public image. In fact, it's a pretty useful cooking accessory, as are a number of other forms of liquor. Cooking with alcohol allows you to inject more flavor into your meal, plus it's always fun to take a swig of whatever while you're cooking. First We Feast assembled a guide to cooking with booze that will make your meals, as well as the process of cooking them, more enjoyable. From beer to cognac, get familiar.