Chili pepper oil is a flavored oil with a spicy and strong taste, prepared, preserved, and used to season or marinate numerous dishes: meat, fish, crudités, crispy bruschetta, or simply to add a kick to a pasta dish. Depending on the maceration time and the type of peppers used, the oil will have a more or less intense flavor. In any case, it's always a good idea to try just a modest amount first, like the tip of a teaspoon, and then increase it according to your taste.