Sugar Free Ketchup
Published July 16, 2022 • Updated February 20, 2026
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I've been making this sugar-free ketchup for years because I refuse to give up my favorite condiment. Most bottled ketchup is loaded with sugar, but mine is made with whole ingredients and tastes even better than store-bought.
This homemade ketchup takes 15 minutes to make. I love pairing it with my corn dogs, hot dog buns, and fries.
The biggest reason I make ketchup at home is ingredient control. I skip the preservatives, mystery “flavors,” and high fructose corn syrup that’s in most bottled brands. Even some homemade recipes call for tons of sugar!
Most bottled and store-bought ketchup contains sugar and the ones that don’t are very expensive, so do yourself a favor and make it yourself!
How to make sugar-free ketchup
Making this takes about 15 minutes total. See the recipe card for full details.
- Whisk together all the ingredients in a saucepan.
- Bring them to a simmer over low heat and cook, stirring and occasionally scraping the bottom of the pan. Cook until the mixture thickens.
- Strain the ketchup, if necessary, to get out any solids and serve.
Key ingredients
Here are the ingredients you’ll need to make this sugar-free ketchup. You can find these everyday items at your local grocery store if you don’t already have them in your own kitchen.
- Tomato paste: Tomato paste is rich and flavorful and the perfect base for the ketchup. Make sure there is no added sugar here too.
- White vinegar: You can also use apple cider vinegar if you prefer.
- Sugar-free sweetener: Sweeteners that can be used are erythritol, allulose, monk fruit, or blended sweeteners like erythritol & monk fruit or allulose and monk fruit. Basically, any sweetener that measures a cup of sugar.
- Water: A little bit helps the consistency to thin out and become easier to spread or dip.
- Salt: Kosher salt adds and enhances the natural flavors.
- Dry mustard powder: This adds flavor and helps bind the ingredients, so they don’t separate.
- Onion powder and garlic powder: Adding some spices makes this dish even more flavorful.
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Ingredients
6 oz tomato paste -
1/2 cup white vinegar
-
1/4 cup sugar free sweetener
-
1/4 cup water
-
1 teaspoon salt
-
1/4 teaspoon dry mustard powder
-
1/4 teaspoon onion powder
-
1/8 teaspoon garlic powder
Step by Step Instructions
Step by Step Instructions
Combine ingredients
Add tomato paste, white vinegar, sweetener, water, salt, mustard powder, onion powder and garlic powder to a small saucepan. Whisk until combined.
Simmer until thickened
Heat over low medium heat and bring to a simmer. Let it cook until thickened (about 10 minutes), stirring occasionally to prevent sticking to the bottom and sides of the pan. Remove from heat and let cool.
Nutrition disclaimer
The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.
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Get My Macros + Recipes →Frequently Asked Questions
Is sugar-free ketchup keto-friendly?
Yes! I designed this recipe specifically for low-carb eating.
Does sugar-free ketchup have artificial ingredients?
This recipe doesn’t, and most bottled sugar-free ketchups don’t either.
Can I use tomato sauce instead of tomato paste to make homemade ketchup?
Use tomato paste instead of sauce because it has way less water and gives you the right consistency.
How much sugar is in ketchup?
Most bottled ketchup has around 4 grams of sugar per tablespoon.
Love this recipe! I didn’t have enough honey so I had to top the 1/4 c off with a bit of organic maple syrup; and also had to sub Dijon for the dry mustard. Delicious!
The maple syrup fills the gap just fine. Dijon is actually tangier than the dry mustard, worth trying on purpose next time.