Cooking tomatoes is an art that requires attention to detail. Whether you are using them as a base for a marinara sauce, a topping for pizza or a savory soup, there are a few essential steps to follow. First, wash and cut the tomatoes into small pieces. Then, simmer them in a pot with garlic, onions, and olive oil. Finally, season with salt, pepper, and sugar to taste. Once the tomatoes have cooked down and are soft, puree them in a blender until smooth. Now you have a delicious and versatile tomato sauce that can be used in various recipes.