Crushed red pepper, also known as the “pizza pepper” or red pepper flakes, have become a must in every kitchen. These chiles are about a 3 to 4 on a heat scale of 1 to 10. Red pepper flakes are not made of one type of chile, but from various combinations of ancho, bell, cayenne, and more. Use these in pickling, chowders, gumbos, spaghetti sauce, pizza sauce, and sausage. They are also great in cream and cheese sauces, omelets and marinades.