Onion powder can be used in any dish that you want onion flavour in. Do not confused onion powder with onion salt. The uses are extensive but typically onion powder is used in dry rubs, soups and stews, vinaigrettes, meat, sauces, gravies or even breat or pasta. The uses are endless. 1 tsp = 1 small onion. Comes in 4oz jar or test tube.