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Keto-friendly Tomato Sauce

This tangy, well-seasoned sauce offers rich and deep flavours

Most store-bought, pre-packaged tomato sauce contains high amounts of sugar. Let alone extra salt and often preservatives and colouring too. Making your own sugar free tomato sauce is quick and easy and keeps for several days in the fridge.

This recipe for homemade keto-friendly tomato sauce is made by using simple and whole ingredients making it suitable for those following a gluten free, dairy free, preservative free and sugar free diet. Serve this tomato sauce over courgetti, keto meatballs, or on your next pizza dish.


Prep: 5 mins

Cook: 15 mins

Makes: 2 batches


  • ½ red onion finely chopped

  • ½ red chilli finely chopped (optional, or more to taste)

  • 2 garlic clove, minced

  • 1 tbsp butter

  • 1 tbsp tomato paste

  • ½ tbsp apple cider vinegar

  • 200 g chopped plum tomatoes

  • ½ tsp garlic powder (optional)

  • ½ tsp dried basil

  • ½ tsp dried oregano

  • ¼ tsp salt

  • pepper, to taste


  1. Fry onion, chilli and garlic in butter until soft without letting it turn brown.

  2. Add tomato paste, vinegar, chopped tomatoes and bring to a boil.

  3. Add the garlic powder (if using) and herbs.

  4. Let simmer on low heat for at least 15 minutes and add salt and pepper to taste. NOTE: The sauce will be enough for two batches, so freeze half of it and save for another time.


Pro tip:

  • Canned whole tomatoes have the best taste, especially plum tomatoes, but good-quality chopped or pureed tomatoes of any variety work well too.

  • Tomato sauces only get better, the longer they are allowed to simmer.

  • Make batches ahead of time and store in the freezer.



The sauce will keep in the fridge for up to 5 days.

To freeze, pour into freezer-safe containers or heavy-duty freezer bags. The sauce will last 3-4 months, or longer if you use a deep freeze


Nutrition per serving:

Total carbs: 9g

Net carbs: 8g

Fibre: 1g

Fat: 6g

Protein: 2g

Kcal: 102


#ketopizzasauce #cloudpizzasauce #ketotomatosauce

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