Onion powder is a seasoning made from dehydrated onions that have been finely ground into a powder. It is commonly used in cooking to add flavor to a variety of dishes, including soups, stews, sauces, and marinades. The drying process concentrates the onion's natural flavors, making it a convenient alternative to fresh onions. This spice is valued for its long shelf life and ease of use. It can be sprinkled directly into recipes or mixed with other spices to create blends. Onion powder is also a popular ingredient in many commercial products, such as seasoning mixes and snack foods.