It wouldn't suprise me if celery was relatively rich in glutamate given its use in stocks and mirepoix, but I think that celery powder is mostly used for its nitrate and nitrite content as a meat curing agent.
Celery salt, at least, is a game changer when making things like stews, gravies and sauces.
If I’m making a ‘western’ dish (for want of a better phrase) it is an essential ingredient to get the depth of flavour into the sauce. The only thing which I find is equally as good at attaining that depth is… celery
If I’m making a ‘western’ dish (for want of a better phrase) it is an essential ingredient to get the depth of flavour into the sauce. The only thing which I find is equally as good at attaining that depth is… celery