Keto Marinara Sauce Recipe – Pasta, Pizza etc

Share with your friends!

Our easy to make Keto Marinara Sauce recipe is a great low-carb base for spaghetti, pizza, or a tasty addition to meat and vegetables.

Keto Marinara Sauce in a glass jar.
Keto Marinara Sauce Recipe

This Keto Marinara Sauce has none of the sugar, additives, and thickeners you’ll find in store-bought versions. But this low-carb marinara sauce has heaps of flavor.

We dip our Cauliflower Tots in it, top our Chicken Parmigiana with it, and toss our vegetables in it. It’s one versatile keto tomato sauce. We even use our keto marina sauce as an ingredient for our Keto frypan pizza recipe.

Keto Marinara Sauce Ingredients

Keto Marinara Sauce Ingredients being poured into a glass jar
Keto Marinara Sauce Ingredients
  • 2 tablespoons of Olive Oil
  • 1 clove of Garlic, finely grated
  • 2 teaspoons of Onion Flakes
  • 2 teaspoons of Fresh Thyme, finely chopped
  • 2 teaspoons of Fresh Oregano, finely chopped
  • 24 ounces of Tomato Puree
  • 2 teaspoons of Erythritol, granulated
  • 1 teaspoon of Pepper, ground
  • 1 teaspoon of Salt
  • 1 tablespoon of Red Wine Vinegar
  • 2 tablespoons of Fresh Parsley, finely chopped

How To Make Keto Marinara Sauce

Keto Marinara Sauce in a saucepan.
How to make Keto Marinara Sauce
  1. In a saucepan, place the oil, garlic, onion flakes, thyme, and oregano. Saute over medium heat for 3 minutes.
  2. Add the tomato puree and stir well.
  3. Add the erythritol, pepper, salt, and red wine vinegar and bring to a simmer.
  4. Turn off the heat and stir through the parsley.
  5. Cool the sauce and store in an airtight jar in the fridge.
keto marinara sauce

Best Keto Marinara Sauce - Spaghetti, Pizza etc

Marinara Sauces at the store are often filled with sugar, additives and thickeners, our Low Carb Marinara Sauce has none of those ingredients. But it does have plenty of flavor!
5 from 109 votes
Print Pin
Course: Condiments, Dinner
Cuisine: Italian
Prep Time: 5 mins
Cook Time: 10 mins
Total Time: 15 mins
Servings: 15 serves
Calories: 38kcal
Author: Matt

Unit Conversion


  • 2 tablespoons Olive Oil
  • 2 cloves Garlic finely grated
  • 2 teaspoons Onion Flakes
  • 2 teaspoons Thyme finely chopped
  • 2 teaspoons Oregano finely chopped
  • 24 ounces Tomato Puree
  • 2 teaspoons Erythritol
  • 1 tablespoon Red Wine Vinegar
  • 1 teaspoon Salt
  • 1 teaspoon Pepper ground
  • 2 tablespoons Parsley finely chopped


  • In a saucepan, place the oil, garlic, onion flakes, thyme and oregano. Saute over medium heat for 3 minutes, until fragrant.
  • Add the tomato puree and stir well.
  • Add the erythritol, pepper, salt and red wine vinegar and bring to a simmer.
  • Turn off the heat and stir through the parsley
  • Cool the sauce and store in an airtight jar in the fridge.


Keto Pizza Sauce Recipe - Easy Low Carb Marinara - Great with Pasta, Meat & Veges Also (2g Carbs)



Serving: 0.25cup | Calories: 38kcal | Carbohydrates: 4g | Protein: 1g | Fat: 2g | Saturated Fat: 1g | Sodium: 168mg | Potassium: 216mg | Fiber: 2g | Sugar: 2g | Vitamin A: 293IU | Vitamin C: 7mg | Calcium: 17mg | Iron: 1mg

How To Store Marinara Sauce

Marinara sauce can be stored in an airtight jar in the fridge for up to 3 weeks or frozen for up to 3 months.

This keto sauce makes 24 ounces/680g of sauce, of which a serving is a ¼ cup. The recipe makes 14 servings, 1 serving has 2g of net carbs.

Keto Marinara Sauce for Pizza
Easy Keto Marinara Sauce for Pizza, Pasta or Meat & Vegetables

Looking for more delicious Keto Sauce recipes? Try our;

To make a larger batch of this Low Carb Keto Marinara Sauce recipe adjust the serving amounts above. 

Share with your friends!

Best Keto Fat Bombs Recipes

18 thoughts on “Keto Marinara Sauce Recipe – Pasta, Pizza etc”

    • Hi Miranda, you can certainly try Splenda. Just be aware that some Splenda products may spike insulin, we never use it.

      • In my opinion if you add sugar (or substitute) to your Marinara you might as well add ketchup instead of tomato paste.
        My Italian chef friend taught me to finely chops carrots and fries it in with the onions (after the onions and garlic are sautéed) before adding tomatoes… which is enough sweetness if you really want it, and then it’s 100% natural and nutritious + fiber.

        • Hi, Gail thank you for that. We’ll definitely give it a go. FYI all of the sweeteners we use are natural sweeteners.

  1. 5 stars
    Wow this sauce is amazing! I used one can of diced tomatoes in place of some of the tomato puree as I like a little ‘chunk’ to my sauce. The flavors are awesome and it is so easy to throw together. This is going to be a staple on my menu. Thank you = )

  2. 5 stars
    Just made it to eat with meatballs and cauliflower mash. The flavor is soooooo deep! Will definitely add this as a pizza sauce next. I’m so in love!

  3. Hi Gerri,
    We just tasted this sauce tonight, this is the best ever.
    Absolutely wonderfull!!!
    Colette & Bernard

  4. I just made this tonight! It is amazing and delicious! Thank you, I will be using it as a keto pizza sauce as well. We loved it, taste so much better than the jar. I used dried oregano and thyme 1tsp each and still came out fabulous!

    • Hi Elicia,

      I can’t see any reason why it couldn’t be canned – it also freezes well if you want to keep some on hand for a quick defrost.


Leave a Comment

Recipe Rating

This site uses Akismet to reduce spam. Learn how your comment data is processed.