Mix all ingredients in a jar, then give the jar a good shake.
I'd recommend shaking the jar to mix the ingredients well before each use.
Use 4 Tablespoons Onion Soup Mix in a recipe in place of 1 packet of onion soup mix. (I actually found that 2 Tablespoons was plenty in a beef stew recipe I tried.)
Store this in a dry, cool place.
Recipe by Heavenly Homemakers at https://www.heavenlyhomemakers.com/homemade-onion-soup-mix-with-no-msg