What should you do first when preparing large pizzas with extra sauce?

The first step when preparing large pizzas with extra sauce is to spread the extra sauce. This is crucial because the sauce serves as the foundation for the pizza's flavor profile. By applying the sauce first, it ensures even distribution across the pizza base, enhancing the overall taste experience. Moreover, having the sauce in place allows for the subsequent layering of toppings to be more effective; the toppings can adhere better to the sauce rather than just sitting on the dough.

While other steps like preparing the dough or preheating the oven are important in the overall pizza-making process, they do not take precedence in this specific situation. Toppings should be added after the sauce to ensure they are properly placed and cooked evenly. Therefore, spreading the extra sauce is the logical first step in this preparation process.