Hot sauce, chili sauce, or pepper sauce refer to any spicy sauce made from chili peppers and other ingredients. There are many varieties around the world. There are many recipes for chili sauces - the common ingredient being chili peppers. The peppers are infused in anything from vinegar, oil, and alcohol to fruits and vegetable pulp. Additional ingredients are often used, including those used to add extra heat, such as pure capsaicin extract and mustards.