Recipe

Homemade Onion Soup Mix

A pantry blend that delivers big savory onion flavor for dips, roasts, burgers, soups, and weeknight “help me” dinners.

By Matt Campbell

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4.8

A small glass jar filled with homemade onion soup mix on a kitchen counter, with a spoon and small bowls of dried onion and spices nearby

Onion soup mix is one of those sneaky little kitchen shortcuts that makes dinner taste like you had a plan. The packet version works, sure, but this homemade blend hits the same cozy, savory notes with pantry ingredients and a little more control over salt and intensity.

Keep a jar in the cabinet and you are five seconds away from a killer dip, a deeply seasoned pot roast, or burgers that taste like they came from a diner with a flat top and a grumpy cook who knows what they are doing.

Small bowls of dried minced onion, onion powder, garlic powder, bouillon, paprika, parsley, salt, and black pepper arranged on a kitchen counter

Why It Works

Big onion flavor, zero drama: dried onion plus onion powder gives you both punch and that classic soup mix vibe.
Customizable salt: choose low-sodium bouillon, or reduce added salt if you are using this on already salty foods.
Multi-use magic: dip, roast seasoning, burger mix-in, sprinkle for veggies, and a fast soup base.
Better texture: dried minced onion rehydrates in dips and braises so you get little oniony bites instead of just “onion flavored salt.”

Pairs Well With

Storage Tips

Pantry: Store in an airtight jar in a cool, dry cabinet for up to 6 months for best flavor.

Quality check: It may keep longer, but think quality first. Discard if it smells off, tastes stale, or shows any moisture, clumping, or discoloration.

Moisture tip: Keep a dry measuring spoon in the jar, and never scoop it over a steaming pot. Steam is the enemy here.

Batching: Double or triple the recipe if you use onion soup mix often. Whisk really well, or seal it in a jar and shake until evenly mixed.

A labeled jar of onion soup mix stored on a pantry shelf next to other seasonings

Common Questions

Is this the same as a store-bought packet?

It is very close in flavor and function, with one big difference: you control the salt and the onion intensity. The bouillon is what gives you that classic savory backbone, so do not skip it unless you are intentionally making a low-sodium blend.

How much homemade mix equals one packet?

Many onion soup mix packets are around 1 to 1.25 ounces by weight (brand dependent). Because weight and volume do not convert perfectly for every mix, a safe starting point is: for recipes calling for one packet, use about 3 tablespoons of this mix, then adjust to taste.

Can I make it without beef bouillon?

Yes. Swap in chicken bouillon for a lighter flavor, or use vegetable bouillon to keep it vegetarian. If you need vegan, make sure your bouillon is vegan (some contain milk or animal flavors). If your bouillon is very salty, reduce or skip the added salt.

Any gluten considerations?

Possibly. Some bouillon powders and seasoning blends include wheat or can be processed in facilities with gluten. If you are gluten-free, choose a bouillon labeled gluten-free and double check the ingredients.

How do I use it for dip?

Mix 3 tablespoons of onion soup mix with 16 ounces sour cream. Let it sit at least 30 minutes so the dried onion can soften, then taste and add a little more mix if you want it louder. If you want it extra snackable, add a squeeze of lemon and a few cracks of black pepper.

Can I use onion flakes instead of dried minced onion?

Absolutely. Onion flakes are usually larger. They still work great, especially in dips and slow cooking. If you want a more “packet-like” texture, crush them a bit with your fingers before mixing.

Can I use this to make a simple soup?

Yes. Stir 3 tablespoons mix into 4 cups hot water or broth. Simmer 5 to 10 minutes, then taste. It is a cozy quick base, not a full French onion situation, but it scratches the itch.

A bowl of creamy onion dip with ridged potato chips and a small spoon on the table

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

Measuring spoons
Small bowl
Whisk or fork
Airtight jar or spice container
Optional: funnel for clean jar filling

I love fancy projects, but I also love the kind of kitchen move that feels like cheating in the best way. Onion soup mix is that. I started making my own when I realized I was basically buying the same few spices over and over, plus a whole lot of salt. Now I keep a jar on standby, and it saves me on the nights when dinner needs to be comforting, fast, and just a little louder than it has any right to be.