...Botanically the chili pepper is a fruit, in culinary terms it is a vegetable. There are a number of varieties of red chili peppers. Some common ones used for spice powders and seasonings include the piri piri, cayenne, and chile de árbol, among others. Each pepper is red and has a thin skin with a thin flesh and seeds inside the middle of the pepper. The shape varies, but is often thin and tapered. The heat level varies also, depending on the type of pepper. Some are mildly hot, while other red chilies are scorching and fiery. The pepper can be used fresh in many dishes, as well as dried or powdered.