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Fermented Ketchup Recipe

Fermented Ketchup Recipe


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4.8 from 14 reviews

  • Author: Emma
  • Total Time: 10 minutes (plus 2–3 days fermentation)
  • Yield: 1 cup 1x
  • Diet: Vegetarian

Description

Learn how to make your own probiotic-rich fermented ketchup at home with this easy recipe. This tangy and flavorful condiment is a delicious and healthy alternative to traditional ketchup.


Ingredients

Scale

For the Fermented Ketchup:

  • 1 (6 oz) can tomato paste
  • 1/4 cup filtered water
  • 1 tablespoon apple cider vinegar
  • 1 tablespoon honey or maple syrup
  • 1 teaspoon sea salt
  • 1/2 teaspoon ground allspice
  • 1/4 teaspoon ground cloves
  • 1/4 teaspoon ground cinnamon
  • 1/2 teaspoon onion powder
  • 1/4 teaspoon garlic powder
  • 1 tablespoon whey (or brine from fermented vegetables or a starter culture)

Instructions

  1. Mix Ingredients: In a medium bowl, whisk together tomato paste, water, vinegar, honey, salt, and spices until smooth.
  2. Add Fermentation Agent: Stir in whey or fermentation liquid until fully combined.
  3. Transfer and Ferment: Place ketchup in a clean glass jar, leaving 1 inch of headspace. Cover loosely and ferment at room temperature for 2–3 days.
  4. Check and Store: Look for bubbling and tanginess. Seal the jar tightly once fermented to your liking and refrigerate. Flavor improves with time.

Notes

  • If you lack whey, use 1 tablespoon of brine from sauerkraut or other fermented vegetables.
  • For a smoother texture, blend the ketchup before fermenting.
  • This ketchup lasts for several weeks in the refrigerator.
  • Prep Time: 10 minutes
  • Cook Time: 0 minutes
  • Category: Condiment
  • Method: Fermenting
  • Cuisine: American

Nutrition

  • Serving Size: 1 tablespoon
  • Calories: 15
  • Sugar: 2g
  • Sodium: 140mg
  • Fat: 0g
  • Saturated Fat: 0g
  • Unsaturated Fat: 0g
  • Trans Fat: 0g
  • Carbohydrates: 3g
  • Fiber: 0g
  • Protein: 0g
  • Cholesterol: 0mg