Cherry tomatoes add a bright flavor to vodka sauce; they take the place of crushed tomatoes in this recipe, for a lighter, summer-appropriate take. To prepare this dish, instead of using a can of tomatoes, you will sauté the cherry tomatoes until they are slightly browned and then press on them with the back of a spoon to burst them and release their juices. Letting this water cook off helps to further concentrate the tomato flavor.