Basil Pesto

Pesto is one of those once-exotic foodstuffs that has become ubiquitous on the American table. It hails from the Italian city of Genoa, in Liguria. Don’t limit yourself to pairing it with pasta—it’s sensational on sandwiches, pizza, and even as a topping for vegetables such as tomatoes and corn. A mortar and pestle (preferably large) is the best tool to use for crushing the basil, since it produces a sweeter-tasting sauce (a food processor also works, as long as you don’t overmix). It’s the traditional equipment, after all, that gives the sauce its name. In this recipe the garlic is blanched first to mellow its flavor; if you prefer the pungent taste of raw garlic, omit this step and use only one or two cloves. For variety, add a little fresh parsley, spinach, or arugula, or substitute pine nuts with walnuts or almonds (chopped after toasting). Store pesto in an airtight container, covered with 1/4 inch of olive oil (to preserve color) in the refrigerator.