Onion Soup Mix From Scratch

Ditch the packet. Make your own Onion Soup Mix from scratch!

Instant Onion Soup Mix from Scratch

You know those onion soup mixes in a bag?  They’re so convenient, aren’t they?  Yea, I know… but you know what else I’ve just discovered?  Onion Soup Mix From Scratch is almost just as easy thanks to a food dehydrator and a little bit of time! 

IMG_1372Seriously. So easy.  Just slice up some white onion (or sweet, whatever you have),


add them to your handy dandy food dehydrator,

Instant Onion Soup Mix from Scratchand let it do its magic.

Instant Onion Soup Mix from Scratch

Once the onions are all nice and dried (I left mine in for 24 hrs mainly because I forgot about them, but they would probably do fine with just 12-18) a quick chop and viola!  Homemade dried onion flakes.  Don’t have a dehydrator?   Not a problem- you can find dried onion flakes in the spice section of the grocery store, too.Instant Onion Soup Mix from Scratch Then, it’s super easy. Just a mix of a bunch of spices you probably already have in the house: paprika, garlic powder, thyme, mustard powder, pepper, and salt.

Instant Onion Soup Mix from Scratch

 And then you have your very own, from scratch, onion soup mix!  Add water for a soup, sour cream for a dip, or use it in any other recipe that calls for onion soup mix.  All from scratch and much cheaper than buying the pre-made packages.  Stay tuned for the Crock Pot Chuck Roast I made with ours by following me via email!

Onion Soup Mix from Scratch

DIY Onion Soup Mix
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Keyword: condiments, dehydrator, vegetarian
Author: Tracy


  • dehydrator


  • 1/4 cup dry onion flakes or your own dehydrated onion
  • 1 teaspoon kosher salt
  • 1 teaspoon dried thyme
  • 1 teaspoon paprika
  • 1 teaspoon dry mustard
  • 1 teaspoon garlic powder
  • 1/4 teaspoon black pepper


To Dehydrate Onions

  • Slice 2 onions thin and line in dehydrator. Dehydrate at 145 degrees for at least 15 hours.
  • When dried, chop.

For the Mix

  • In a small mixing bowl, combine all ingredients.
  • Store in an airtight container.
  • To use, stir into recipes as you would commercial onion soup mix (about 1 to 2 tablespoons per 1/2 cup sour cream for dip).





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  • I love the idea of this because I’m a huge onion soup mix fan, but feel bad about using a packet of who knows what’s in there! Totally jealous of your food dehydrator ๐Ÿ™‚ Enjoy your weekend and happy Fiesta Friday!!

    • Thanks, Amanda!! I love those mixes as well but totally love controlling what’s exactly in them more. Girl, you should totally invest in one or hint to a family member for a birthday or holiday ’cause they are amazing!! Happy FF! xo

  • I have never been so sad to not own a dehydrator! Onion soup is one of my absolute favourites as I use it for SO MANY things and I WANT to make this! Do you think I can dehydrate onions in the oven on the lowest setting? (like for fruit roll ups?)
    This is one brilliant recipe Tracy! Thank you!

    • Oooh you should totally treat yourself with one! ๐Ÿ˜€ But you can totally dehydrate them in the oven, too. Super low, like 140 degrees single layered for about 6-8 hours I’m sure would do the trick! ๐Ÿ˜‰

  • Amazing!! What a genius idea to make your own onion soup mix- my husband misses out on his favorite onion dip from back in the day because I won’t buy the packet ๐Ÿ™‚

  • Thanks for the recipe, but you leave out very useful aspects such as it takes A LOT of onions to make a suitable amount of dried onion granules.