Buying low-carb or keto tomato sauce can be pricey. Making your own is simple, far more economical, and lets you control the flavor and ingredients. This keto-friendly tomato sauce takes minutes to prepare in a blender, contains no added sugar, and can be tailored with your favorite herbs and spices. Use it on zucchini noodles, for dipping, or anytime you need a low-carb marinara.
Low Carb Tomato Sauce with No Added Sugar
Many store-bought low-carb tomato sauces are expensive or contain hidden sugars. This homemade recipe uses canned tomatoes with no added sugar and comes together in about five minutes in a blender. The result is a smooth, versatile marinara that’s perfect for keto diets and easy to season to your taste.
Video: Recipe for Low Carb Tomato Sauce
Homemade Keto-Friendly Marinara Sauce in 5 Minutes
- This recipe uses a 28 oz can of crushed, pureed or plum tomatoes—choose a brand with no added sugar and check the label.
- Combine the tomatoes, a splash of olive oil, and spices in a blender. Garlic powder, onion powder and dried herbs (oregano, basil, thyme, parsley) work well.
- The sauce is flavorful, budget-friendly compared to jarred options, and contains no added sugar so it fits low-carb and keto preferences.
- If you prefer a deeper flavor or a thicker texture, simmer the blended sauce on low for 10–15 minutes to reduce and concentrate the flavors.
- Full recipe details are provided in the recipe box below.
Tips: How To Make Easy Keto Tomato Sauce
- Choose quality canned tomatoes—pureed, chopped, or whole—without added sugar and with low natural sugar.
- Spices are the key to depth of flavor. Try garlic powder, onion powder, dried herbs, and a pinch of red pepper flakes for heat (optional).
- Add tomatoes, olive oil, and seasonings to a blender and pulse until smooth. Adjust texture and seasoning to your preference.
- Freeze portions in airtight containers for quick access to homemade sauce. A larger batch stores well in the freezer.
- See the recipe box below for full ingredient amounts and instructions.
Low Carb Tomato Sauce
Yield: 8 servings
Prep Time: 5
Total Time: 5
This sauce is made from canned tomatoes without added sugars. If you prefer a sweeter sauce, add a teaspoon of a carb-free sweetener such as monk fruit or stevia.
Makes about 4 cups.
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Ingredients
- 28 oz. (794 g) canned tomatoes (crushed, chopped, or whole plum, peeled; no added sugar)
- 1/4 cup (60 ml) olive oil (or avocado/grapeseed oil)
- 1 teaspoon (5 ml) kosher salt , or to taste
- 1/2 teaspoon (2.5 ml) fresh cracked black pepper , or to taste
- 1 teaspoon (5 ml) garlic powder
- 1/2 teaspoon (2.5 ml) onion powder
- 2 teaspoons (10 ml) dried herbs (oregano, basil, thyme, parsley)
- 1/2 teaspoon (2.5 ml) red pepper flakes (optional)
Equipment
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Blender
Instructions
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Add all ingredients to the blender (canned tomatoes, olive oil, salt, pepper, garlic powder, onion powder, dried herbs, and optional red pepper flakes). Pulse until smooth.
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Taste and adjust seasonings to your preference.
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Store in a sealed container in the fridge for up to two weeks, or freeze portions for longer storage.
Video
Nutrition Information per Serving
Calories: 81kcal
, Carbohydrates: 5g
, Protein: 1g
, Fat: 7g
, Sodium: 298mg
, Fiber: 1g
, Sugar: 3g
, Carbohydrates: 5g
, Protein: 1g
, Fat: 7g
, Sodium: 298mg
, Fiber: 1g
, Sugar: 3g
Course: Sauces
Cuisine: American, Italian, Keto, Low Carb, Mediterranean
Calories: 81
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