Can you substitute onion powder for flakes in a recipe?

No, you cannot use onion powder in place of onion flakes. Onion flakes are made from thinly sliced onions that are dried. Then they are reconstituted by soaking in water or another liquid. Onion flakes are larger in size than dehydrated onion powder. Onion powder is made by grinding dried onion into a dust-like consistency.

The substitution will impact the texture of your dish. Onion powder will create a uniform, smooth finish, while onion flakes will impart a different, more rustic texture to your recipe.