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    Home » Recipes » Condiments

    Fermented Sambal Oelek

    Published: May 26, 2022 by Kristen Wood - This post may contain affiliate links.

    Skip to Recipe Pin Recipe

    A fermented take on the Indonesian chili paste Sambal Oelek, from my cookbook Fermented Hot Sauce Cookbook. Packed with probiotics and a good dose of heat and flavor! Naturally vegan and gluten-free.

    A clear jar filled with a red chile paste with a silver spoon resting against the jar.

    This homemade sambal oelek is a thicker, chili paste-like sauce with potent heat, making it a great base or addition to dishes like curries and soups that take on the flavor but reduce the heat a bit. This is a traditional Indonesian sambal oelek chile paste, with a fermented twist!

    Jump to:
    • ❤️ Why You'll Love This Recipe
    • 🗒️ Ingredient Notes
    • 🍲 How to Use Sambal Oelek (Ulek)
    • ❓ Frequently Asked Questions
    • 🥄 Sambal Oelek Substitutes
    • 🌶️ More Delicious Hot Sauce Recipes
    • 📖 Recipe
    • 💬 Comments

    ❤️ Why You'll Love This Recipe

    • Super easy to make! It's a great fermentation recipe for first-timers.
    • Packed with both heat and flavor, like any good hot sauce should be!
    • Thanks to the natural preservation properties of the fermentation process, this hot sauce keeps for a good long while.
    • It's a versatile condiment that can be used a myriad of ways.
    • Packed with gut healing probiotics.
    • Naturally vegan, gluten-free, dairy-free, soy-free, nut-free and sugar-free.

    🗒️ Ingredient Notes

    Thai chili peppers: Fresh Thai chiles make the best sambal oelek. These chiles are also known as bird's eye chiles and can be found in the produce section of most grocery stores these days. If you only have access to dried thai chiles, you can use them, but you must soak them in warm water to rehydrate them prior to following the recipe. Alternatively, fresh cayenne peppers work as a suitable substitution for the Thai chiles if need be. You are probably most familiar with Thai chiles for their use in Thai sweet chili sauce, sometimes by way of sambal oelek.

    Cayenne peppers: Dried cayenne peppers are easily purchased online. They work in combination with the Thai peppers to add more complex flavor notes. In a pinch you can replace them with dried Thai chiles if need be.

    Garlic: Garlic and chiles go together extraordinarily well and this small hint of garlic adds to the depth of flavor in this chili sauce.

    Salt: Non-iodized salt (salt without iodine) is necessary when fermenting, as iodine hinders the fermentation process. Any kind of sea salt or Himalayan salt works great.

    Water: Non-chlorinated (no chlorine) water is necessary for the fermenation process. Home-filtered water usually removes enough chlorine to work well, as does store-bought spring water.

    Lime juice: No good hot sauce is complete without a little added acid. In this case the lime juice just works well with the chiles and garlic and adds its own unique flavor note.

    Rice vinegar: Rice vinegar is more traditional and adds its own unique flavor, but absolutely any kind of vinegar can be used in its place in a pinch. In fact, you can have fun with it and add your favorite tasting vinegar for a unique touch.

    🍲 How to Use Sambal Oelek (Ulek)

    Much as you would use sriracha or tabasco sauce, sambal oelek can be used like you would most any hot sauce. Some of my favorite ways to use it:

    • Drizzled over eggs.
    • In a traditional dish like Nasi Goreng Kampung.
    • As a spicy pizza sauce.
    • Mixed into marinara for a spicy pasta sauce.
    • As a marinade for roasted vegetables or tofu.
    • Incorporated into stir-fry dishes.

    ❓ Frequently Asked Questions

    Can I make sambal oelek without a food processor or blender?

    Yes! Traditional sambal oelek is made with a mortar and pestle, and you can do the same. Simply create a pepper mash with this method before moving onto the fermentation step.

    What does sambal oelek mean?

    In Indonesian "sambal" refers to a sauce made with chiles and "oelek" or "ulek" means mortar and pestle.

    Is fermentation safe?

    Yes! As the lactic acid bacteria carries out the fermentation process, it actually kills off harmful bacteria as well. Despite common fears, fermentation is one of the safest ways of preparing and preserving food. Having said that, as with all food, if something looks or smells off, toss it and start again! You can find more information about the fermentation process in my Fermented Hot Sauce Cookbook or reach out with any questions you may have in the comments below.

    🥄 Sambal Oelek Substitutes

    Gochujang is a Korean fermented chili paste, with complex fermented flavors not unlike this recipe.

    Harissa is a Moroccan chili paste that can replace sambal oelek in a pinch.

    Both of these can be found in my cookbook Fermented Hot Sauce Cookbook!

    And, if this sambal oelek recipe sounds just a touch too spicy for you, you might like this this homemade pico de gallo instead!

    🌶️ More Delicious Hot Sauce Recipes

    Louisiana Hot Sauce

    Fermented Jalapeno Hot Sauce

    Fermented Bajan Hot Sauce

    A clear jar filled with blended chiles with a spoon resting against it.

    📖 Recipe

    Fermented Sambal Oelek

    A fermented take on the Indonesian chili paste Sambal Oelek, from my cookbook Fermented Hot Sauce Cookbook. Packed with probiotics and a good dose of heat and flavor! Naturally vegan and gluten-free.
    5 from 28 votes
    Print Pin Rate SaveSaved!
    Course: Condiments
    Cuisine: Fermentation, Indonesian
    Diet: Gluten Free, Vegan, Vegetarian
    Prep Time: 10 minutes
    Cook Time: 0 minutes
    Fermentation Time: 7 days
    Total Time: 7 days 10 minutes
    Servings: 14 servings
    Author: Kristen Wood

    Ingredients

    • 8 ounces fresh Thai chiles approx. 200 peppers, stemmed
    • 8 dried cayenne peppers approx. 0.1-ounce
    • 1 garlic clove
    • 1 teaspoon non-iodized salt iodized salt hinders the fermentation process
    • 1 teaspoon non-chlorinated water home-filtered or spring water works well
    • ¼ cup lime juice
    • 2 tablespoons rice vinegar
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    Instructions

    • In a food processor or blender, combine the Thai chiles, cayenne peppers, garlic, salt and water. Blend until a pepper mash (paste) forms. Pack the mash into a clean jar.
    • Place a cartouche, if using (see Notes), then screw the lid on tightly and store the jar at room temperature to ferment for 1 week. Burp the jar daily by briefly removing the lid to release any gases formed.
    • Once fermentation is complete, transfer the mash into a blender or food processor along with the lime juice and vinegar. Blend until well combined.
    • Keep the sauce stored in the refrigerator for up to 6 months. Enjoy!

    Notes

    A cartouche is basically a protective layer you can add over the top of a more solid ferment to protect it and prevent bad bacteria when oxygen is present. While not necessary, it does make for a more foolproof ferment. To make a cartouche, simply cut out a circle parchment paper to fit the jar and press into the top of the pepper mash before sealing the jar.
    You might also like: Fermented Pomegranate Rose Hot Sauce.
    You might like: A Guide to Asian Spices.
    You might like: Honey Sriracha Sauce.

    Nutrition

    Serving: 1ounce | Calories: 7kcal

    Recommended Products

    32 oz Mason Jar
    Have you tried this recipe?Please Rate + Comment Below!
    Mention on Instagram!@moon.and.spoon.and.yum
    A recipe page from the book Fermented Hot Sauce Cookbook from MOON and spoon and yum.

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    Reader Interactions

    Comments

    1. Michelle says

      August 18, 2022 at 8:00 am

      5 stars
      This is amazing. I could put it on everything. I love this even more than the original

      Reply
      • Kristen Wood says

        August 18, 2022 at 10:47 am

        I'm so happy to hear that! Thank you for sharing. 🙂

        Reply
    2. Jacqueline Meldrum says

      August 13, 2022 at 2:54 am

      5 stars
      That looks and sounds gorgeous! I sm thinking of so many dishes I could use this with.

      Reply
    3. Anjali says

      August 13, 2022 at 12:03 am

      5 stars
      I had no idea it was so easy (and delicious!) to make sambal oelek at home on my own! I'm never going back to store bought again!

      Reply
    4. Beth says

      August 12, 2022 at 9:31 pm

      5 stars
      What a delicious recipe! I love your suggestion to drizzle it over some eggs - doing that asap!

      Reply
    5. Sophia says

      August 12, 2022 at 8:26 pm

      5 stars
      My husband loves hot sauce so we're always looking for new recipes. We used the parchment to ferment and the whole process was surprisingly simple. It was good and we'll definitely make again!

      Reply
    6. MJ says

      May 26, 2022 at 7:05 pm

      5 stars
      I love sambal oelek but never thought to make my own at home before now. Love how you make it so easy!

      Reply
    7. Irena says

      May 26, 2022 at 6:42 pm

      5 stars
      I love sambal oelek in general but have never tried the fermented version or made my own. Great recipe! Thanks for sharing.

      Reply
    8. Carrie Robinson says

      May 26, 2022 at 5:15 pm

      5 stars
      My fiance would love this! I need to make this for him soon. 🙂

      Reply
    9. Andrea says

      May 26, 2022 at 4:29 pm

      5 stars
      Thank you!! I love making my own sauces to avoid all the preservatives and additives. Can't wait to try this.

      Reply
    10. Jill says

      May 26, 2022 at 4:08 pm

      5 stars
      I'm just curious since I have not fermented anything before, is there any chance of bacteria growing? Just want to make sure I'm safe and doing this right! Really looking forward to trying this spicy treat of a sauce!

      Reply

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    kristen wood

    About Kristen Wood

    Hi, I'm Kristen! A mama, food writer, photographer, recipe developer, and cookbook author. I enjoy sharing both wildly creative and ridiculously practical gluten-free vegetarian recipes that are approachable for all. Welcome!

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