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 a rich, savory flavor to various dishes, such as soups, stews, and marinades. The powder retains the essence of fresh onions, making it a convenient alternative for those who want onion flavor without the hassle of chopping. This versatile ingredient is often found in spice blends and can be used in both home cooking and commercial food production. Onion powder is shelf-stable, making it a practical pantry staple for enhancing the taste of meals without the need for fresh onions.