Red pepper flakes are small, dried pieces of chili peppers, often made from varieties like Cayenne or Serrano. They are commonly used as a spice to add heat and flavor to various dishes, including pizzas, pastas, and sauces. The flakes can vary in heat level, depending on the type of pepper used and the amount of seeds included. These flakes are a staple in many kitchens and are often found in spice racks. They can be sprinkled directly onto food or incorporated into recipes. In addition to their culinary uses, red pepper flakes are also known for their potential health benefits, such as boosting metabolism.