Gregory Morrow wrote:
Garlic and onion powders are an indispensable part of Caujun/Southern -
style cooking, they are used in seasoning mixes. For example I am making
fried chicken for dinner tonight, garlic and onion powder will be included
in the flour coating for the chicken...

Garlic and onion powders are not interchangeable with the real deals, e.g.
fresh onion and garlic, but they do have their uses.

I agree. I often use both fresh and powdered (actually granulated)
versions of both in the same dish. The flavors are different.

-L.