The primary ingredient in a traditional Italian pizza is flour, specifically wheat flour. This ingredient is essential for making the pizza dough, which is the foundation of the dish. Italian pizza dough typically consists of flour, water, yeast, and salt, allowing it to rise and develop a chewy yet crispy texture when baked. Different regions in Italy may use varying types of flour, often influencing the final texture and flavor. Once prepared, the dough can be topped with a variety of ingredients, including tomato sauce, mozzarella cheese, vegetables, and meats. Authentic Italian pizza emphasizes high-quality, fresh ingredients to achieve its distinctive taste.