Pepperoni pizza is a popular type of pizza that features a base of dough topped with tomato sauce and cheese. The defining characteristic of this pizza is the addition of pepperoni, a type of spicy Italian sausage that is sliced into thin, round pieces. When baked, the pepperoni becomes slightly crispy and releases flavorful oils, enhancing the overall taste of the pizza. This dish is commonly enjoyed in many countries, especially in the United States, where it is one of the most ordered pizza varieties. Pepperoni pizza can be served in various styles, including thin crust, thick crust, and deep-dish, catering to different preferences among pizza lovers.