Make your own: Onion Soup Mix

I use onion soup mix often in my cooking. I severely dislike it when I am about to make something and find that I'm out. Not any longer...
1 & 1/2 Cups Dried Minced Onion
2/3 Cup Beef Bouillon Granules (I buy the gluten-free kind)
2/3 Cup Onion Powder
1/2 teaspoon Sugar
(One recipe I found added 1/2 teaspoon crushed celery seed, but I don't)
Store in a dry pantry. Use 4-5 Tablespoons in place of 1 envelope.