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ketchup in bowl with spoon

Sugar-Free Ketchup Recipe

Low-Carb and Keto Friendly Sugar-Free Ketchup Recipe from Fresh Tomatoes
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Course: Condiment
Cuisine: American
Keyword: ketchup, KETO friendly, Low Carb, sugar-free
Prep Time: 15 minutes
Cook Time: 1 hour
Servings: 64
Calories: 10kcal


  • large stockpot
  • immersion blender
  • canning or freezing containers


  • 6 pounds fresh tomatoes
  • 1 cup apple cider vinegar
  • 1 teaspoon Worcestershire sauce
  • 2 tablespoons garlic powder
  • 2 tablespoons onion powder
  • 2 teaspoons mustard powder
  • 1 teaspoon salt
  • ½ teaspoon black pepper


  • Wash tomatoes.
  • Cut tomatoes in quarters, removing cores, stems, seeds and liquid.
  • Place all ingredients in a large stockpot or soup kettle.
  • Heat pot over medium to medium/high heat until mixture begins to bubble.
  • Reduce heat and simmer until the mixture reaches the thickness of ketchup.
  • Remove from heat.
  • Blend the ketchup with an immersion blender.
  • Prepare for storage, either canned or frozen.
  • If canning, use the water bath method and follow instructions for canning tomato sauce.


This recipe makes approximately (8) 8-ounce containers. A single serving is calculated at 2 tablespoons. Nutritional information is an estimation only as the volume will vary with each batch and cook. 


Nutrition Facts
Sugar-Free Ketchup Recipe
Amount Per Serving (2 tablespoon)
Calories 10 Calories from Fat 9
% Daily Value*
Fat 1g2%
Saturated Fat 1g6%
Sodium 40mg2%
Potassium 109mg3%
Carbohydrates 2g1%
Fiber 1g4%
Sugar 1g1%
Protein 1g2%
Vitamin A 354IU7%
Vitamin C 6mg7%
Calcium 6mg1%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.

Nutrition label is calculated by automated third-party services. The nutritional information provided here is an estimate only, for informational purposes only, and can vary depending on the specific ingredients, preparation and accuracy of the third-party system used for calculations. It is always best practice to confirm the nutritional calculations, especially if nutritional information is critical to your diet plan.