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Keto Ketchup Recipe

Dom Lorenzo
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Craving a classic condiment without the sugar? This Keto Ketchup is a low-carb, sugar-free alternative that tastes like the real thing. Made with a handful of pantry staples and sweetened with keto-friendly ingredients, this ketchup pairs perfectly with burgers, fries, and more, while keeping your carb count in check.

Keto ketchup in a glass jar.
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Preparation and Cooking Overview

This recipe takes about 5 minutes to mix and 20 minutes to simmer. Whisk tomato paste, vinegar, and keto-friendly sweetener together, then simmer the mixture for about 15-20 minutes until thickened. It’s quick, easy, and can be stored for weeks.

Chef's note

For a spicier kick, add a pinch of cayenne or a dash of hot sauce. If you prefer a smokier flavor, increase the smoked paprika or use chipotle powder. Adjust the sweetness and tang to your taste by tweaking the amount of vinegar and sweetener used.

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  • Prep Time: 5 minutes
  • Cooking Time: 20 minutes
  • Total Time: 25 Minutes
  • Difficulty Level: Easy
  • Recipe Makes 12 Servings (about 1 tablespoon per serving)

Ingredients for This Keto Ketchup Recipe

  • 1 cup tomato paste, unsweetened
  • ½ cup apple cider vinegar
  • ⅓ cup water
  • 2 tablespoons erythritol
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder
  • ½ teaspoon smoked paprika, optional
  • ¼ teaspoon salt
  • Pinch of ground cloves, optional

Ingredient Substitutions

  • Tomato paste: Use tomato puree for a slightly thinner texture. You may need to cook it down longer to thicken.
  • Erythritol: Swap it for monk fruit, stevia, or allulose to match your preferred sweetness level.
  • Apple cider vinegar: Use white vinegar or red wine vinegar if you prefer a less tangy taste.

Cooking Tools Required

  • Medium saucepan
  • Whisk
  • Measuring cups and spoons
  • Airtight container or glass jar for storage

Tools Substitute Options

  • Whisk: If you don’t have a whisk, a spoon will work to combine the ingredients, but whisking will give a smoother texture.

How to Make Keto Ketchup: Step-by-Step Guide

Cooking Methods

  • Simmering

Preparation Steps

  1. Measure out all your ingredients.
  2. Set up your cooking area with a medium saucepan and whisk.

Cooking Instructions

  1. In a medium saucepan, combine the tomato paste, apple cider vinegar, water, keto sweetener, garlic powder, onion powder, smoked paprika, salt, and a pinch of ground cloves if using.
  2. Whisk the mixture until all the ingredients are fully incorporated and smooth.
  3. Bring the mixture to a simmer over medium heat, stirring occasionally.
  4. Reduce the heat to low and let it simmer for 15-20 minutes, stirring occasionally, until the ketchup thickens to your desired consistency.
  5. Taste the ketchup and adjust the seasoning as needed, adding more sweetener for sweetness or vinegar for tang.
  6. Once thickened, remove the saucepan from heat and let the ketchup cool.
  7. Transfer the cooled ketchup to an airtight container or jar and store it in the fridge.

Chef's pro tip

Simmer on low heat, stirring occasionally to prevent it from becoming too thick—if needed, adjust with a little water or vinegar. Cooling completely before storing ensures a smooth, well-balanced taste. For the best flavor and texture, let your keto ketchup chill in the fridge for a few hours to allow the flavors to meld.

How to Serve with Keto Ketchup?

  • Keto Burgers: This homemade ketchup pairs perfectly with juicy, low-carb burgers, adding just the right balance of tangy and sweet flavors.
  • Keto Fries (Zucchini Chips): Dip crispy, golden keto fries into this rich, flavorful ketchup for a satisfying snack or side.

How to Make It Healthier

For a lighter, even lower-calorie version, you can replace the apple cider vinegar with lemon juice to cut back on calories while still maintaining a tangy flavor. You can also reduce the amount of sweetener for a less sweet version.

Time-Saving Tips

  • Make a double batch and store it in the fridge for up to 2 weeks, so you always have keto ketchup on hand.

What Can I Prepare Ahead of Time?

  • You can prepare and store this ketchup in the fridge for up to 2 weeks or freeze it for up to 3 months. Make sure to freeze it in an airtight container or freezer-safe bag for optimal freshness.

Storage Instructions

  • Store your keto ketchup in a glass jar or airtight container in the refrigerator for up to 2 weeks.
  • To freeze, transfer the ketchup to a freezer-safe container and store it for up to 3 months.

Recipe Wrap-Up and Conclusion

This Keto Ketchup recipe brings all the classic flavor of traditional ketchup without the sugar. It’s a perfect condiment for anyone following a keto or low-carb lifestyle and is easy to make with ingredients you likely already have in your pantry. Try it today and enjoy a healthier, guilt-free version of this beloved condiment!

Frequently asked questions

Yes, but you’ll need to cook them down for longer to get the right thickness. You may also need to adjust the seasoning and sweetener to balance the flavors.

If your ketchup is too thin, let it simmer for a bit longer to reduce the liquid and thicken the consistency.

Monk fruit sweetener, erythritol, or allulose work best. Avoid sweeteners that leave an aftertaste.

Yes! Add cayenne, chili powder, or sriracha sauce for heat.

Yes, but with caution. Most store-bought ketchup contains added sugars, which can increase carb intake. However, sugar-free or keto-friendly ketchup, like homemade versions using keto sweeteners, is a great alternative.

To make sugar-free ketchup, combine unsweetened tomato paste, apple cider vinegar, water, and a keto-friendly sweetener like erythritol, monk fruit, or allulose. Add seasonings like garlic powder, onion powder, smoked paprika, and salt. Simmer for 15-20 minutes, then store in an airtight container.

📖 Recipe

Keto ketchup in a glass jar.

Keto Ketchup

Whip up this easy, homemade Keto Ketchup—rich, tangy, and perfectly sweet without the carbs, ready to pair with all your favorite low-carb meals.
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Course: Condiment
Cuisine: American
Keyword: 30-minute
Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes
Servings: 12
Calories: 21kcal

Ingredients

  • 1 cup tomato paste unsweetened
  • ½ cup apple cider vinegar
  • ⅓ cup water
  • 2 tablespoons erythritol
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder
  • ½ teaspoon smoked paprika optional
  • ¼ teaspoon salt
  • Pinch of ground cloves optional
US Customary - Metric

Instructions

Preparation Steps

  • Measure out all your ingredients.
  • Set up your cooking area with a medium saucepan and whisk.

Cooking Instructions

  • In a medium saucepan, combine the tomato paste, apple cider vinegar, water, keto sweetener, garlic powder, onion powder, smoked paprika, salt, and a pinch of ground cloves if using.
  • Whisk the mixture until all the ingredients are fully incorporated and smooth.
  • Bring the mixture to a simmer over medium heat, stirring occasionally.
  • Reduce the heat to low and let it simmer for 15-20 minutes, stirring occasionally, until the ketchup thickens to your desired consistency.
  • Taste the ketchup and adjust the seasoning as needed, adding more sweetener for sweetness or vinegar for tang.
  • Once thickened, remove the saucepan from heat and let the ketchup cool.
  • Transfer the cooled ketchup to an airtight container or jar and store it in the fridge.

Nutrition

Nutrition Facts
Keto Ketchup
Amount Per Serving
Calories 21 Calories from Fat 1
% Daily Value*
Fat 0.1g0%
Saturated Fat 0.02g0%
Polyunsaturated Fat 0.04g
Monounsaturated Fat 0.02g
Sodium 222mg10%
Potassium 233mg7%
Carbohydrates 4g1%
Fiber 1g4%
Sugar 3g3%
Protein 1g2%
Vitamin A 374IU7%
Vitamin C 5mg6%
Calcium 9mg1%
Iron 1mg6%
*

Nutritional values are estimates only and do not include carbs from sugar alcohols.

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