How to Make Black Garlic at Home in a Crock-Pot (Recipe)

Updated on May 6, 2020
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Daniel is a chef who has worked at many great restaurants around the country. Amanda is his talented waitress and beautiful soul-mate.

Black Garlic Recipe
Black Garlic Recipe

Black Garlic Recipe

Making black garlic at home may sound like a lot of work, but with a crockpot and a few jars, it is relatively easy. Bear in mind that for full flavor, your crockpot will be in use for ten to 40 days.

If having the benefit of incredible flavor wasn't enough to entice you, there are also many health reasons to eat black garlic. Black garlic is great for the immune system; it provides good cholesterol and antioxidants, fights cold viruses, and even helps your digestive tract. A true superfood! This guide will have you on your way to making one of the most delicious and hard-to-find ingredients in your very own home!


Black garlic is caramelized garlic that takes several weeks to make, but just a few minutes of prep time. All you will need is:

  • A few jars (we used Mason jars and salsa jars, but any glass jar with a sealable lid should work here.)
  • Some paper towels
  • A crockpot
  • Garlic!

Step 1: Setting Up

Making black garlic at home with this method will be much easier than all methods I have attempted and yields a sweeter, more delicious bulb of black garlic.

  1. To start, make sure you leave the garlic whole. Do not peel it or separate the cloves. Leave the garlic as one whole "bunch."
  2. Place as many whole bunches of garlic as you can into your jar or jars and cover your garlic with a damp paper towel. (It is important to wring your paper towel out well, or it will not turn out right.)
  3. Now, you will want to pressure-can your jars to keep the seal intact by setting them in a pot of boiling water for about 5 minutes or until the seal pops down. You should be able to hear each jar "click" lightly once they are properly sealed.

After making sure your jars are sealed well, it is time to move on to the next step.

Place your wet paper towel over the garlic.
Place your wet paper towel over the garlic.

Step 2: The Waiting Game

After you have done all the previous steps, it's time to start the heating process.

  1. Fill your crockpot about halfway full with water and set your jars inside of it, with the lids facing upwards.
  2. Set your crockpot to its lowest setting, and place the lid of the crockpot on top. After two days with your crockpot set to its lowest heat setting, turn the heat up to its next highest setting for another two days.
  3. After these two days, lower the temperature back to the lower setting for the remainder of this process.

Note: For those who have a crockpot with settings "Keep warm" or "Warm," the process is a bit different for you. I recommend starting the heating process on "Warm," followed by "low," and the remainder of the process on "low."

Step 3: Let the Flavor Intensify

It will take several weeks for your garlic to be at its flavor peak. We wait about 30 days for ours, but you could leave it for up to 40. Less than 30 is okay, but make sure to leave it for at least ten days. Leave it for any more than 40 days and your garlic will start to fall apart. For maximum flavor and sweetness, do not open your jars until they have fermented in the water for 30 days. It should be flaky, have a sweet taste, and be a bit mushy, almost like a gummy bear.

Enjoy Your Black Garlic

We feel that this method of making black garlic at home is the best way to go about it. You will not have the smell constantly floating inside of your house, and it is incredibly easy. We have also tried many different methods to make our black garlic, and this method turned out the best. The black garlic is very sweet and has a very unique flavor. Enjoy!

Share Your Success Below

Thank you for reading! If you try my method, please make sure to let me know how it turns out for you. I would love to hear about it, and what you have made or plan to prepare with it! Good luck on your culinary adventures.



Rate This Recipe

3.2 stars from 54 ratings of Black Garlic Recipe

Questions & Answers

  • Is there any point where you must add more water to the crockpot while making black garlic?

    You should be adding water anytime the water level gets too low. About three inches from the bottom of the pot is too low. I usually need to add water once a day.

  • I tried to get my jars to seal for over an hour. I ended up putting them in the crockpot, hopefully I didn’t ruin them. It still wasn’t sealed. Do you think it will be ok?

    As long as you don't lift the lid of the crockpot too often, it should be fine. Make sure if the lid of your crock has a hole to let steam out, to seal it or cover it temporarily. You may have the smell of fermented garlic in your home without properly sealing your jars- but that may be a good thing.


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    • profile image


      7 months ago

      Hi, in my experience a crockpot is way too hot to effectively make black garlic. Black garlic kept at over 155° for a prolonged time will make it bitter, which is not what you want to do.

    • profile image


      12 months ago

      Hi, my black garlic turned out to be rock hard. Do you know how to salvage them? I dont want them to go to waste:(

    • profile image


      23 months ago

      Have you compared this technique with a rice cooker?

    • profile image

      Hello I am interested In tour method. Could you explain the step when we want TO seal the jars? 5 mina In boiling water will not spoil the garlic properties? 

      3 years ago

      Hello I am interested In tour method. Could you explain the step when we want TO seal the jars? 5 minutes In boiling water will not spoil the garlic properties? Please could you reply TO

      Thank you for this post

    • Wowee Dowee profile image

      Wowee Dowee 

      4 years ago

      You are welcome!

    • GaminCouple profile imageAUTHOR

      Daniel And Amanda 

      4 years ago from Florida

      Sure thing, thanks for commenting!

    • Wowee Dowee profile image

      Wowee Dowee 

      4 years ago

      Thank you for this posting.


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