Of course you know that the ingredients you cook with matter a lot—but the way you cook those ingredients (or don't cook them!) does too. Don't take our word for it: try these three ways of preparing broccoli (you could use asparagus, green beans, or even sliced zucchini if you prefer). Each method uses the exact same ingredients, so you can really see the differences among them. Get a couple of friends to help you, and you'll be able to sit down with the four variations and compare notes on which you like best.