Low-Carb Marinara Sauce

Martina Slajerova14 comments

|Low-Carb Marinara Sauce

Marinara sauce is one of the many low-carb ingredients I use on a regular basis. Several recipes in the KetoDiet App include this easy to make sauce and I'll also be using it in upcoming recipes on my blog. It's great as low-carb pizza topping, with zoodles or as a dip with home-made, grain-free Keto Breadsticks. It's easier than you think - just follow the video recipe below :-)

Preparation time


Nutritional values (per ¼ cup, 60 g / 2.1 oz):

2.6 grams 0.84 grams 0.66 grams 9.8 grams 1.3 grams 101 calories
Total Carbs3.5grams
Net Carbs2.6grams
of which Saturated1.3grams
Potassium & Magnesiumtrace

Macronutrient ratio: Calories from carbs (3%), protein (10%), fat (87%)

Ingredients (makes ~ 1 ¼ cup / 300 g / 10.5 oz):

  • 1 cup cherry tomatoes or regular tomatoes, chopped (150 g / 5.3 oz)
  • ½ - 1 cup fresh basil
  • 2 cloves garlic
  • 1 shallot or small white onion (30 g / 1.1 oz)
  • ¼ cup tomato puree/paste, unsweetened (60 g / 2.1 oz)
  • ¼ cup extra virgin olive oil (60 ml / 2 fl oz)
  • ¼ tsp salt or more to taste (I like pink Himalayan)
  • freshly ground black pepper

Note: When looking for ingredients, try to get them in their most natural form (organic, without unnecessary additives).


  1. Wash and drain the tomatoes and fresh basil. Peel the onion and garlic.
    |Low-Carb Marinara Sauce
  2. Place most of the ingredients in a food processor and blend until smooth. You may need to dice the onion and mash the garlic before to make sure there are no large pieces left. |Low-Carb Marinara Sauce
  3. If you prefer a chunky texture, leave some tomatoes and basil aside, dice and add to the smooth sauce. When done, place in an airtight container and store in the fridge for up to a week. To keep it fresh for longer, pour a thin layer of extra virgin olive oil on top and store for up to 2 weeks. |Low-Carb Marinara Sauce
  4. Marinara sauce is perfect as topping on low-carb pizza! |Low-Carb Marinara Sauce

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Comments (14)

Thank you, thank you, thank you, Martina.  Your recipes are so good and this one saved me.  I've been faithfully followin a keto diet for three months and have lost 17 lbs. But today I really struggled. I wanted Chinese food and french fries and a milk shake and . . . But I made this for dinner with the Italian meatballs.  I was so happy. I did.  It was one of the best things I've even eaten.  I think you've earned your angel wings with all the recipes and information you've shared on your blog and app.  I couldn't have made it this far without you.


Thank you so much for your kind words!!


I just made this. It's absolutely delicious!! Now let's hope my vegetarian keto lasagna turns out as well Smile


Thank you Rosanna, I hope it did! Smile


This was excellent!  So easy and so flavorful!  Thank you!


Thank you Amy!


Do you think the carb count would change much if I were to simmer all of the ingredients first? I know cooking onion and garlic real eases some sugar.


Hi Lis, I don't think so and even if it does, it won't be significant - the macros will be the same, just the amount may change (less water).


Thank you for this recipe! I have a very picky four-year-old and he has been boycotting just about every food you can think of aside from fruit and cereals. Well, since the start of the 90-Day Challenge, I have been transitioning my family onto a healthier, low-carb diet and working them toward keto, too.
I put my ingredients through my NutriBullet and that worked very well. It wasn’t chunky like yours. It was smooth, similar to guacamole. Either way, it would have been fine, haha. The NutriBullet is just crazy fast.
My son LOVED it on top of boiled Shirataki noodles. He loves spicy things, so I added a few squirts of hot sauce. I am just ecstatic my picky, PICKY son was actually going, “Mmm! It’s delicious!” We also made your breadsticks, so this was a very yummy and successful dinner. Thank you, again!


Brittney that's amazing! I'm so happy to hear that you all liked my recipes! Smile


Hi, Usually when I make a sauce with raw onions, all you can taste is that. Would it be the same for this?


Hi Jessica, I don't think the onion taste is too strong in this sauce - I only use a small onion Smile


Why Cherry tomatoes? They're delicious of course. But are they lower carb than their full sized counterparts?


Hi, no they are not, you can use "regular". I just use them because they have a more distinctive flavour Smile


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