There are some basic, fundamental recipes that every cook should have in his or her tool belt. As cooks, we learn some of these in college, on a tight budget with limited time. As we get a little older, we start to find our favorite tweaks, substitutions and improvements. Ideally, by the time we hit 30, we have an arsenal of great recipes that we feel comfortable making anytime. This way, if you invite someone over for dinner, you don’t have to panic and thumb through every cookbook you own (unless you want to).