Garlic, Onion, & Chili Powder

how to make onion powder Garlic, Onion, & Chili Powder

If you’ve ever bought spices from the store, you probably noticed that they often contain ingredients like “ant-caking agent” or “natural flavor” (AKA MSG). Many often contain trace amounts of soy or other fillers, and sometimes these don’t even have to be listed on the ingredients.

Mystery fillers aside, these spices also often sit on the shelf, in plastic bottles, for a long time. By the time you bring them home, they have lost much of their flavor (and did I mention they might contain soy, MSG, or other additives!)

As with many aspects of natural living, simple is often cheaper, easier, and more healthy. Making your own garlic, onion and chili powders (or a blend of all three) can be one of the easiest and tastiest changes you can make. These are also a great addition to homemade spice blends!

How to Make Onion, Garlic, and Chili Powders at Home:

  1. Gather a few onions, several heads of garlic, or 8-10 peppers (sweet, spicy, or mixed all work).  You can also mix these three to make an all purpose seasoned salt.
  2. Make sure all are clean, and peel onions or garlic cloves if using those.
  3. For onions and garlic: slice into thin slices (1/4 inch or less) and put on sheet in dehydrator or on lowest setting in the oven (170 or less). For chili and peppers: slice in half and remove seeds (or leave if you want a really spicy version!) Place on dehydrator sheet or on baking sheet in oven on lowest setting.
  4. Dehydrate until they are completely dry and not leathery. They should be brittle enough to break by hand. Depending on type of peppers, onions and garlic used, they may take different times to finish. Check every few hours and remove any pieces that are done.
  5. When all are done drying, put into coffee grinder, food processor or blender. If you want individual spices, blend separately. If you want a mixed seasoned salt, blend them all together.
  6. Once they are finely powdered, leave in food processor or blender with lid  on for at least 10 minutes to let it settle. This is important! Trust me… I learned the hard way! Opening it too soon will lead to a rapid sinus cleanse icon smile Garlic, Onion, & Chili Powder
  7. Store in glass jars and enjoy!

Ever made your own spices? How did they turn out?

Reader Comments

  1. Betsy Warren says

    I enjoy learning how to make things from scratch  - it never occurred to me to even make my own spices.  Thank you!

  2. Barbara Grant says

    I have made both onion powder and garlic powder.  Better by far in taste that store – bought.

  3. Don says

    Another thing about store bought spices is that they are often irridated and they don’t have to tell you that so I always ask but good luck trying to get a right answer. Trader Joe’s told me they don’t irridate theirs but the best way for sure is to buy organic ones or make your own. Great ideas thanks so much for them. Blessings!!!

  4. says

    can you specify want kind of peppers? Are the jalapeno, poblano etc? I would really like to make my own chili powder. That is similar to the store but without the fillers.

    • says

      it depends on how spicy you want it. anaheim and chili peppers make a
      less spicy powder, where habenero or jalepeno make more spicy ones.
      you can even use sweet peppers and get the taste without the heat.

  5. Angi says

    I already grow and dry a lot of my spices like rosemary, basil, lavender, etc. but I never thought to make onion or garlic powder. If it’s dehydrated it should last quite a while, right? What a great idea. And my own chili powder… hmmmm :) 

  6. Valerie Jacks says

    I have never done spices on my own, but one time I was in a real pinch and put regular granulated white sugar in my coffee grinder and made powdered sugar. It was quick and easy and I have to admit I was surprised that it worked! But now I can buy my white sugar in bulk and then I can make my own powdered sugar and save some money

  7. Scheibe says

    I’ve grown my own herbs and let them dry out.  They last longer and taste better.  Just cut a few sprigs of your favorite herbs and place on a paper towel covered counter.  Turn over as needed. In a few days you will be able to rub between your fingers into a dry herb.  Place in airtight container and store until ready to use.  I’ve had success with thyme, basil and dill…I never seem to have what I need at the right time, so by adding to my cupboard dries, I’m assured I’ll have it when I need it.  Do it all summer long and have fresh herbs long into the winter. 

    • Kelly Killeen says

      Erica, I just recently found some Ball brand herb storage jars. I was looking around the canning section at Walmart and there they were. They come in packs of 4 and come with BPA free shaker tops and lables (the lables don’t stick very well though). They have a very wide mouth, so they are easy to fill. Also, you can buy canning tops separately to fit the smaller jars. They are a little wide, but they fit on my spice rack. I have already filled up my first set with dried herbs and am going to get more tomorrow. I plan to put my homemade toothpaste and deodorant in them. Going to try making my own jams also!

  8. Shaina Grover says

    Has anyone tried this with a waring pro dehydrator? I was set on making onion powder with it for my first time using it, but I have no clue what setting to pick…

  9. Charli Beyma says

    I have made garlic and green onion powder. I find that I get better consistency by puree them before I dehydrate. Makes it easier to grind after.

    • Amy says

      How does the puree process work? Does it burn if you don’t turn it? I’ve never really worked with anything on the lowest setting in the oven so I’m not sure, but the puree idea sounds great.

  10. Nancy says

    We dry our peppers and use them in chunks, flakes, or powder. Plan to start making own onion & garlic powder – recently found out I am allergic to corn. Corn powders/cornstarch is a common filler in many products. Thank you for sharing this!

  11. Jessica says

    I am new to your site, and must say I LOVE IT! This may be a silly question however, do you have a cook book of all your receipes?

  12. Barbara says

    Do you put the onion on any special kind of rack in the dehydrator? I just got one today and I’m excited to try this out.

  13. Rute says

    Hi! I was wondering if you have an idea of how long will it takes to dry the onion/garlic in a traditional oven? I don’t have a dehydrator… Yet :)

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