The easiest (and tastiest) keto Big Mac Sauce. A firm favourite in my house and with loads of our readers! Make it today with just a few standard pantry ingredients.
Keto Big Mac on a plate.

How To Make It

Why You Will Love This Recipe

What is not to love when you can make your own Big Mac Sauce at home! Bonus that it is also sugar-free!

Low carb – the almond flour pie crust has less than 1g net carbs per serve.

7 ingredients – Made with everyday ingredients found in most pantries.

Quick and easy – ridiculously easy to mix. Ready in less than 10 minutes.

Keto Vegan and Paleo. Use plant-based mayonnaise to make vegan Big Mac sauce.

Thermomix friendly – so easy in a ThermomixMagimix or food processor in no time and with easy cleanup. It comes together so quickly.

Keep reading for more details on the ingredients, substitutes and step by step instructions on how to make them.

Keto Big Mac Sauce Ingredients

Keto Big Mac Sauce ingredients in small bowls.

It takes just 7 ingredients to make our very popular copycat Big Mac Sauce recipe.

Scroll to the bottom of this post for the amount of each ingredient needed to make our copycat Big Mac sauce recipe.

  • Mayonnaise – I recommend making your own. Many supermarket brands include seed oils and sugar. Using a keto mayonnaise recipe will eliminate any “nasties”.
  • Dill Pickles – I use Polski Ogorki dill pickles. They are sugar-free. Check the labels of any shop-bought brands to make sure they have no sugar added.
  • Yellow Mustard – I use yellow American mustard or Australian mustard. Check the brands you use for any additives.

Step By Step Instructions

Mayonnaise with pickles in a bowl.

STEP 1 – Add all the ingredients to a mixer bowl

If mixing with a Thermomix or Magimix add wall the ingredients to the mixer. The pickles can be roughly chopped.

Mixed big mac sauce in a blue bowl.

STEP 2 – Stir until combined. Transfer to an airtight jar and store in the fridge until required.

Place all the ingredients into the mixer; mix 7 sec/speed 5. Store in an airtight jar in the fridge for up to 1 week.

Keto Cookbooks & Ebooks

Hot Tips & FAQs

This Keto Big Mac Sauce could not be any easier to make. Here are just a few tips to help.

Is Big Mac Sauce keto?

The original McDonalds Big Mac Sauce recipe is higher carb than this version. It does include sugar in the ingredients.

Can I freeze Big Mac Sauce?

No. While it may look fine when frozen the mayonnaise will split when thawed.

Can I use another vinegar?

Sure. Use any vinegar you prefer.


Store in an airtight jar for up to 1 week in the fridge.

Can I make Big Mac Sauce in the Thermomix?

Sure can. I have included Big Mac Sauce Thermomix instructions in the recipe card below.

More Recipes To Try

Keto Big Mac Sauce is a great keto condiment recipe. It works perfectly with so many other family friendly keto dinners.

  1. Keto Big Mac Salad use this keto special burger sauce in this super simple keto salad recipe.
  2. The Best Keto Beef Burger serve this healthy big mac sauce with our easy keto beef burger. A great family-friendly dinner.
  3. Keto Onion Rings – a quick and easy keto snack recipe in under 20 minutes.
  4. The Best Keto Taco Salad with Ground Beef – one of our best ground beef recipes goes fabulously with our keto special burger sauce.
  5. Keto Wraps | Easy Low Carb Wraps – quick and easy keto wraps are perfect to serve with this quick keto dressing.
  6. Keto Coleslaw | Sugar-Free Creamy Dressing – swap the dressings for a keto salad the whole family will love.
Keto tortillas with a beef burger and keto big mac sauce.

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Keto tortillas with a beef burger and keto big mac sauce.

Keto Big Mac Sauce |

The easiest (and tastiest) keto Big Mac Sauce. A firm favourite in my house and with loads of our readers! Make it today with just a few standard pantry ingredients.
5 from 57 votes!
Prep Time: 5 minutes
Cook Time: 0 minutes
Total Time: 5 minutes
Course: Condiment, Dressing
Cuisine: American, Australian
Diet: Gluten Free
Recipe Category: Low Carb
Calories: 130kcal
Author: Megan Ellam
Servings: 6 serves
Tap or hover over number to scale ingredients
Print Pin Save Rate





  • Place all the ingredients into a small bowl and mix until combined. Store in an airtight jar in the fridge for up to 1 week.


  • Place all the ingredients into the mixer; mix 7 sec/speed 5. Store in an airtight jar in the fridge for up to 1 week.


Make your own mayonnaise or make sure you use a sugar-free one.
Dill pickles or gherkins can be used. Make sure they are sugar-free.
I use yellow American-style mustard but an Australian or seeded mustard can be used.
Use smoked or sweet paprika.
Store in an airtight jar for up to 1 week.
The Big Mac sauce can be used as part of a salad like our Big Mac Salad, Smoky Chicken Salad or Taco Salad.
It is also great in casserole or coating chicken and baking. Yummo!

Your Own Notes


Serving: 1serve | Calories: 130kcal | Carbohydrates: 1g | Protein: 1g | Fat: 14g | Saturated Fat: 2g | Cholesterol: 8mg | Sodium: 193mg | Fiber: 1g | Sugar: 1g | Vitamin A: 53IU | Calcium: 2mg | Iron: 1mg | Magnesium: 2mg | Net Carbs: 0g
Tried this recipe?Mention @meganellam or tag #madcreations!

Megan Ellam is an Australian keto recipes blogger living in Thornton, NSW. She is the author of amazing keto cookbooks such as Slow Cook KetoKeto LocoThe Healthy Family Keto Cookbook and Every Day Keto.

Megan has been following a ketogenic diet since being diagnosed with insulin resistance in early 2017. After a long cooking career Megan simply swapped her “foodie focus” to easy keto recipes. Her keto Australian recipes all include both metric and US customary measures so that everyone can enjoy them.

Megan also makes all the recipes suitable for conventional cooks, Thermomix recipes and thermal cookers e.g. Magimix recipes.

Share This Recipe

57 responses to “Keto Big Mac Sauce {Vegan + Paleo Options}”

  1. Meagan

    Loved this sauce, used it on my chicken burger using lettuce leaves not buns. Didn’t have the cucumber so just left if out & still tasted great, thank you

  2. France

    5 stars
    I didn’t have any dill cucumbers/pickles so I added 2 tsp of your Ranch Spice Mix and I’m loving it! So much nicer than just plain mayo sometimes!

  3. Darlene

    This is the best Big Mac recipe yet! Kudos to those who found it, we’re having Big Macs tonight with no bun and I’m really looking forward to it

    Thank you

    1. Megan Mad Creations Hub

      You are very welcome. Happy to help out with a tasty recipe.

  4. Rupali

    5 stars
    I loved this sauce. I used to make burgers at home, but this was the ‘little something’ missing. Great recipe!

    1. Megan Mad Creations Hub

      Thanks Rupali

  5. Deb

    5 stars
    Girl u really hit the mail on the head with this one. Yummy!

    1. Megan Mad Creations Hub

      Yay! So happy to help

  6. Amy

    5 stars
    This is one of my favorite sauces ever! Such a classic!

    1. Megan Mad Creations Hub

      It sure is. Thanks for trying Amy

  7. Nancy

    5 stars
    Thanks for this healthier Big Mac sauce. I really missed it.

    1. Megan Mad Creations Hub

      Happy to help

  8. Helen at the lazy gastronome

    5 stars
    I love this sauce. It’s easy to make and gives the burger some real zip!

    1. Megan Mad Creations Hub


  9. Nora

    5 stars
    Yum! Such a great taste! Love this sauce!

  10. Erin

    5 stars
    I love love love this recipe! It will be in the weekly rotation going forward!

  11. Andrea

    woah! this is the sauce that i didn’t know i needed! loved it on my sandwiches for lunch this week!

  12. Audrey

    5 stars
    I loved this sauce!! It was so easy to make as well.

  13. Pattikins

    Thanks a million Megan. I feel a certain freedom, knowing I can make Big Mac sauce @ home now LOL. Your recipe definitely hit the spot for me.

    I did not have onion powder so I subbed in fine fine diced onion, a dash of salt & a tiny squirt of ketchup. (I an NOT hard core keto)

    I loved it. 💜

    1. Megan Mad Creations Hub

      Love it. Thanks for taking the time to leave a review.

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