Old world pepperoni is a type of pepperoni that is different from the American style pepperoni. It is a dry-cured sausage that is typically made with a mix of pork and beef, and it is seasoned with chili and paprika. Old world pepperoni is also known for its natural casing, which is usually made from sheep intestine, and it is thicker and has a burnt red hue compared to American style pepperoni. The distinctive curly edges of old world pepperoni are a result of the casings reacting with high heat. Old world pepperoni is also spicier and has bolder flavors than American style pepperoni. It is a versatile cured meat sausage that can be used in more dishes than just as a topping on a pizza crust.