Celery salt is a seasoning made of finely ground celery seed and salt. Ingredients in celery salt my vary, depending on the on manufacturer.
For example, Masterfood Celery Salt has the following ingredients: Salt 68%, Celery Seed 23%, Rice Flour, Red Capsicum, Herbs & Spice, Vegetable Oil. (Masterfoods)
Use of Celery Salt
Celery salt is used as a seasoning for fish, poultry, meat, seafood, vegetables and salads. It’s also used in cocktails (Bloody Mary and Caesar cocktails).
It can also be used as an ingredient in other seasonings for example the famous Old Bay Seasoning.