The fruits are generally dried and ground, or pulped and baked into cakes, which are then ground and sifted to make the powdered spice of the same name.Cayenne is a popular spice in a variety of cuisines. It is employed variously in its fresh form, dried and powdered, and as dried flakes. It is also a key ingredient in a variety of hot sauces, particularly those employing vinegar as a preservative. Cayenne pepper is often spread on sandwiches or similar items to add a spicy flavor..