Pizza cheese is a key ingredient that adds creamy, gooey, and melty goodness to pizzas. It refers to a blend of cheeses specifically designed for pizza making. The most common types of cheese used for pizza include mozzarella, cheddar, Parmesan, and sometimes provolone or fontina. These cheeses are chosen for their ability to melt and stretch, creating that desirable stringy texture when the pizza is hot and fresh out of the oven. The cheese provides a rich and savory flavor that complements the other toppings on the pizza.