For many of their pizzas, the cooks at Pizzeria Mozza use an uncooked sauce of pureed canned tomatoes. It has a brighter tomato flavor and a more vivid color than the sweet, thick, long-simmered sauces commonly found on American pizzas. To make the sauce, put one 28-oz. can of whole peeled San Marzano tomatoes into the bowl of a food processor, along with 1 tbsp. extra-virgin olive oil, 1 tsp. dried basil, 2 minced cloves garlic, and half a grated medium onion. Puree and season with salt and pepper.