DRIED ONION

Onion powder is dehydrated, ground onion that is commonly used as a seasoning. It is a common ingredient in seasoned salt and spice mixes, such as beau monde seasoning. Some varieties are prepared using toasted onion. White, yellow and red onions may be used. Onion powder is a commercially prepared food product that has several culinary uses. Onion powder can also be homemade. Commercial onion powders are prepared using dehydration, freeze-drying, vacuum-shelf drying and flow drying. Some commercial onion powders are irradiated as treatment against potential microbial contamination. It readily absorbs water upon contact, so commercial varieties may be packaged in airtight containers with a liner atop the container. Sometimes, sold in sliced dehydrated form.