Homemade Onion Soup Mix: Skip the Packet and Make It Better
Once you try homemade onion soup mix, the store-bought packet loses its appeal fast. The ingredients are simple, the process takes under five minutes, and you get a blend that’s fresher and more flavorful than anything in a foil envelope. A good diy onion soup mix lets you control the salt level and skip the additives entirely.
Whether you’re planning to make your own onion soup mix for a soup, a dip, or a slow-cooker roast, this guide has you covered. Follow this recipe onion soup mix exactly or adjust it to your taste. Knowing how to make onion soup mix from scratch is a small skill with outsized payoff in everyday cooking.
Why Make Your Own Onion Soup Mix
What the Store Packet Actually Contains
Commercial onion soup packets often contain monosodium glutamate, caramel color, cornstarch, and sodium levels that can top 800mg per serving. When you make the mix yourself, you see exactly what goes in. That matters whether you’re cooking for someone with dietary restrictions or simply want a cleaner ingredient list on your table.
Ingredients for Homemade Onion Soup Mix
The Essential Components
Dried minced onion is the foundation — you’ll use more of it than anything else. Onion powder amplifies the flavor and gives the blend a fine texture that dissolves into liquid easily. Beef bouillon powder (or granules) adds the savory, umami backbone. Garlic powder, dried parsley, celery salt, and black pepper round out the profile. A small amount of cornstarch thickens soups and dips slightly as they cook.
A reliable ratio for one packet equivalent: 3 tablespoons dried minced onion, 2 teaspoons onion powder, 2 teaspoons beef bouillon powder, 1 teaspoon garlic powder, 1 teaspoon dried parsley, 1/2 teaspoon celery salt, 1/4 teaspoon black pepper, 1 teaspoon cornstarch.
Adjustments for Dietary Needs
Swap beef bouillon for vegetable bouillon to make the mix suitable for vegetarians. Reduce or omit the celery salt and use a salt-free bouillon if you’re managing sodium intake. The homemade onion soup mix still works beautifully in dips even without the bouillon — just taste and adjust before serving.
How to Make Onion Soup Mix Step by Step
Combine all ingredients in a small bowl and stir until evenly mixed. That’s it. You can scale the recipe up by multiplying every measurement by four or five and storing the larger batch for later use. One batch of this diy onion soup mix equals roughly one commercial packet, which typically weighs about 28 grams or one ounce. Use it in a 1:1 swap anywhere a recipe calls for a store-bought packet.
How to Use Your DIY Onion Soup Mix
Classic French Onion Soup
Dissolve two to three tablespoons of your recipe onion soup mix in four cups of beef broth. Add caramelized onions and simmer for 20 minutes. Ladle into oven-safe bowls, top with a slice of toasted baguette and grated Gruyère, and broil until the cheese bubbles. The how to make onion soup mix knowledge pays off immediately here — the depth of flavor from the fresh blend beats any packet version.
Dips and Roasts
Stir one packet equivalent into 16 ounces of sour cream for a classic onion dip. Refrigerate for at least an hour before serving so the dried onion rehydrates fully. For roasted meats, rub the blend directly onto beef, chicken, or pork before putting it in the oven or slow cooker. It creates a flavorful crust on roasts and flavors the pan drippings at the same time.
Storing the Mix
Store your make your own onion soup mix in a small glass jar or zip-top bag. Keep it in a cool, dry place away from direct sunlight. Properly stored, the blend stays at full potency for up to six months. After that, the dried onion and herbs lose some of their punch, though the mix won’t spoil. Label the jar with the date so you always know how fresh it is.
