Garlic powder is made from garlic cloves that have been dehydrated and ground into fine particles. It is widely used for its pungent garlic flavor and aroma as a seasoning or condiment. It is white or yellowish in color.Garlic Powder is a fine powder made from the roasted, crushed, or ground bulbs of the garlic plant. It is often used in cooking as a flavoring agent. Garlic powder can also be used as a spice for marinades, sauces, and soups.