The main ingredient in a traditional pizza is the dough, which serves as the foundation for the entire dish. Typically made from flour, water, yeast, and salt, the dough is kneaded and then allowed to rise before being shaped into a flat base. Once formed, it's topped with a variety of ingredients such as tomato sauce, cheese, meats, and vegetables, which add flavor and texture. The combination of the dough and toppings is then baked to create the delicious, savory meal that is beloved worldwide.