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    Home ▸ Vegan Sauces and Toppings

    Vegan Caramelized Onion Aioli with Fresh Sage

    Last modified: September 27, 2018. Originally posted: September 30, 2014 By Sophia DeSantis

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    This vegan caramelized onion aioli is bursting with flavor! It's the perfect sauce or dip and and ideal complement to any fall recipe. #vegan #plantbased #glutenfree #vegandips

    This vegan caramelized onion aioli is bursting with flavor! It's the perfect sauce or dip and an ideal complement to any fall recipe.

    Front view tan creamy sauce with caramelized onions and sage in glass jar

    Well, we are finally getting some hint of fall here in SoCal! Although there are more hot days on the horizon, a few fall like days are being thrown in the mix so I'm going with it. And making all the things to smother on my fall meals. And there really is nothing like a good old aioli.

    Making vegan aioli

    So the thing with aioli is that it is mayo based. Which is great if you aren't going for that health factor, and a huge plus is that it's super easy to grab a jar of vegan mayo from the store. But if you want a little good for you thrown in, you need to put a tad more effort.

    I have an AMAZING homemade mayo recipe in my cookbook (check it out if you don't have it yet). So you could always buy it and make that (plus a ton of other delicious recipes, so win win). But if you don't have it, and don't really want another book on your shelf, then we still have options. And I still love you.

    You could use cashews as a base for this aioli, or you could use silken tofu. I have a weird thing with silken tofu aftertaste, so it wouldn't be my first choice, but it works in a pinch. With the cashews, you need a high speed blender to get the perfect texture, but a food processor can also work. Follow the notes in the recipe for hints on using cashews without a fancy blender.

    Let's do this, making caramelized onion aioli like...

    1. You need to caramelize the onions, which can be done oil free as well. The key, patience. If you cook it too high because you want to get it done, then they will burn. So like Mr Miyagi says, patience young grasshopper (if you haven't seen Karate Kid I highly recommend it). Collage of the before and after of onions caramelizing in a pan
    2. Then you will mix the caramelized onions and sage into your mayo type base (whatever that may be). Mix well and let it sit so the flavors can marinate. Then spread it on all the things (my tempeh sandwich is amazing with it). Glass jar filled with tan creamy sauce next to knife spreading sauce on bread piece
    Front view tan creamy sauce with caramelized onions and sage in glass jar

    Vegan Caramelized Onion Aioli with Fresh Sage

    Sophia DeSantis
    This vegan caramelized onion aioli is bursting with flavor! It's the perfect sauce or dip and and ideal complement to any fall recipe.
    4.50 from 2 votes
    Print Recipe Pin Recipe
    Prep Time 5 mins
    Cook Time 15 mins
    Total Time 20 mins
    Course 30 Minutes or Less, Appetizer
    Cuisine Mediterranean
    Servings 8 servings
    Calories 99 kcal

    Ingredients
     
     

    • 1 cup sweet onion , sliced
    • ½ cup  veggie broth , low sodium if needed
    • 1 tablespoon fresh sage , chopped
    • 1 teaspoon  maple syrup
    • 1 teaspoon lemon juice (more if using cashew base, see below)
    • 1 cup vegan mayo , or for oil free see cashew base below (or use silken tofu, see notes)

    For oil free cashew base:

    • 1 cup cashews
    • ¾ cup water (add more to thin out if needed)
    • 2 teaspoons lemon juice (so you will have a total of 3 teaspoons juice including what is used above)
    • ½ teaspoon sea salt (adjust as preferred)

    Instructions
     

    • In a medium pan over low heat, sauté onions and sage with the veggie broth and maple syrup.
    • Make sure to keep the heat low and be patient for the onions to caramelize. It takes time but if you turn up the heat you will burn them without getting the true caramelized taste. 
    • You may need to add another splash of veggie broth if they get too dry and sticky before they are ready. You will know they are done when they are very limp, browned but not burned and they become sticky. Once done, let cool.
    • Once the onion mixture is cool, place in a blender or food processor along with the lemon juice and mayo and blend until mixed but still slightly chunky.

    If using cashew base:

    • Follow sauteeing instructions above, while the onions are cooking place the cashews, water, lemon juice and salt into a high speed blender and blend until smooth. You will need to scrape down the sides to get it to mix well.
    • Then once the onion and sage mix is cooled, place it in the blender and pulse a few times to incorporate.

    Notes

    • Recipe makes about 2 cups.
    • You can also sub silken tofu for the mayo or follow the instructions for the oil-free cashew base.
    • If you are not using a high speed blender you can either soak the cashews overnight, boil them for 30 minutes or grind them into a fine powder using a coffee grinder.
    • Nutrition facts are for the cashew base version.

    Recipe by Veggies Don’t Bite, visit our site for more great plant-based recipes.

    Nutrition

    Calories: 99kcalCarbohydrates: 7gProtein: 3gFat: 7gSaturated Fat: 1gPolyunsaturated Fat: 0gMonounsaturated Fat: 0gTrans Fat: 0gCholesterol: 0mgSodium: 143mgPotassium: 130mgFiber: 0gSugar: 2gVitamin A: 15IUVitamin C: 1.7mgCalcium: 14mgIron: 1.2mg

    Nutrition and metric information should be considered an estimate.

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    1. AJ Gest

      December 25, 2018 at 1:16 pm

      Just finished making this. I think it came out great. Plan to serve it tonight with a sietan steak, baked sweet potatoe, and fresh green salad. I'll let you know. AJ

      Reply
      • veggiesdontbite

        December 26, 2018 at 10:22 pm

        I hope it was awesome AJ! Thanks so much for letting me know!

        Reply
    2. Ruthie

      September 09, 2018 at 5:18 pm

      Made this and it turned out perfectly delicious!!! Yum!!!!!! Eating it with grilled sausage on baguette, and as a dip with carrots and sea salt & vinegar chips!!

      Reply
      • veggiesdontbite

        September 09, 2018 at 11:20 pm

        I'm so happy you like it!!

        Reply
    3. Emily Kemp

      May 29, 2018 at 1:30 am

      This looks so delicious, I love caramelised onions!

      Reply
    4. situ

      July 27, 2017 at 5:52 am

      I just found this recipe. So easy yet so tasty looking. Any thoughts on what to replace the sage with? I can't get it overseas in India!

      Reply
      • veggiesdontbite

        July 27, 2017 at 8:01 pm

        Hi Situ! You could replace with another green herb of your choice, such as thyme or basil if you have those!

        Reply
    5. julian

      February 18, 2016 at 8:08 am

      Oh my god his was sooooo good! even my meat eating parents loved it! (i made it for your tempeh apple sandwich, it was a major hit :D)

      Reply
      • veggiesdontbite

        February 18, 2016 at 8:10 am

        Oh that's awesome!!! So glad you liked it! I just love the flavor of caramelized onion. Thanks for letting me know!

        Reply
    6. The Vegan 8

      September 30, 2014 at 7:38 pm

      This sounds incredible and flavorful! I will definitely try it with the cashews....I know vegan mayo has a lot of flavor to it, so using cashews will make it less flavorful...so to make up for it I think I will add extra lemon juice or apple cider vinegar and salt and sure it will be delish. Can't wait to try it...will probably be after my daughter's birthday party because I'm so backed up on my posts currently...but it will go down in my kitchen!

      Reply
      • veggiesdontbite

        September 30, 2014 at 7:45 pm

        Thank you!!! Yes, with the cashews it's more of a mellow creamy flavor but still delish. I almost preferred it when paired with some things because vegan mayo has so much flavor. I added extra salt to the cashew version but nothing else however more lemon juice will definitely give it that yummy tang. Let me know how you like it once you come up for air! Lol. Good luck with the party. I know it will go great!

        Reply
    7. Be Sol-Ful

      September 30, 2014 at 2:43 pm

      This looks and sounds fantastic! I'm a sucker for anything with caramelized onions. YUM!

      Reply
      • veggiesdontbite

        September 30, 2014 at 2:53 pm

        Thanks Mandy! It's such an easy way to make a "fancy" dip. I'm posting all we paired it with over this next week!

        Reply
    8. ajourneywithtiffany

      September 30, 2014 at 7:26 am

      This sounds so awesome. I will definitely have to try this!

      Reply
      • veggiesdontbite

        September 30, 2014 at 7:33 am

        Thank you! It's a great fall spread!

        Reply
    9. bscartabello

      September 30, 2014 at 6:05 am

      Oh yum - this sounds amazing! I need to try this to have with my veggies! <3

      Reply
      • veggiesdontbite

        September 30, 2014 at 6:44 am

        Thank you! It's delicious and goes great with fall veggies!

        Reply

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