Onion powder, a spice made from ground dehydrated onions is used for seasoning in cooking. Many cooks of the world prefer onion powder to fresh onions because it is easier to handle, saves time and require no chopping or special treatment. Prepared from finely ground dehydrated onions, they contain very strong smell and last for a longer duration, if properly packaged and stored. Since bulb onions contain much of the flavor and distinctive aroma of the onion, they are widely used for preparing onion powder. Onion powder is a perfect condiment for taco mix, chili, barbeque rubs, salad dressings, dips, marinades, and as an addition to hamburgers.