Red Pepper Flakes are most commonly seen in a shaker on the table in a pizza restaurant, so most people are familiar with them. They are made from a variety of different types of chili peppers and the seeds, veins, and skin are included. They can vary widely in heat level so best to start in small quantities. Besides on pizza, Red Pepper Flakes can used in all types of sauces, especially pasta sauces and in chili. Origin of spice: India