Chili powder is a red-colored blend of powdered spices. It is the dried, pulverized fruit of one or more varieties of chili pepper, sometimes with the addition of other spices. It is used as a spice to add pungency and flavor to culinary dishes. Chili powder is used in many different cuisines including American, Chinese, Indian, Korean, Mexican, Portuguese, and Thai. Here are the most popular chillies , found In India: Kashmir Andhra Pradesh Gujarat Kerala Karnataka Tamil Nadu. Dehydrate your chili peppers with a dehydrator and grind them into homemade chili powders. Chilli powder has a long shelf life. Properly stored, chili powder will generally stay at best quality for about 3 to 4 years. To maximize the shelf life of chili powder purchased in bulk, and to better retain flavor and potency, store in containers with tight-fitting lids.