Keto Tomato Sauce Recipe (Sugar-Free) (2024)

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This recipe for sugar-free keto tomato sauce is full of flavor and can be used in so many recipes. All while only using 5 ingredients!

Keto Tomato Sauce Recipe (Sugar-Free) (1)

While tomatoes are keto-friendly, store-bought versions of tomato sauce can be full of hidden sugars, carbs and who knows what else that isn’t good for you.

This is a simple keto tomato sauce recipe that you can use in any way you like. Use this sauce on a cauliflower pizza crust, low-carb eggplant parmesan, or a keto pizza casserole.

The sauce can easily be prepared ahead, saving you time in the kitchen.

How to make keto tomato sauce

Step 1: In a small saucepan over medium-high heat, saute the garlic in the olive oil. Saute for a minute until the garlic is fragrant. Make sure the garlic doesn’t brown and become burnt.

Keto Tomato Sauce Recipe (Sugar-Free) (2)

Step 2: Turn the heat down and add the tomatoes, oregano, vinegar, and salt to the saucepan. Bring to a simmer and allow to cook for 30 – 40 minutes, allowing the sauce to reduce and thicken.

Keto Tomato Sauce Recipe (Sugar-Free) (3)

Step 3: Use the sauce immediately if desired or store for later use.

Make a batch and store it!

You can use this sugar-free tomato sauce immediately if desired or it can be stored for later use. To store the sauce, allow it to cool to room temperature first. Once cooled, transfer to an airtight container and refrigerate for up to 5 days.

You can also freeze the sauce after it has cooled to room temperature. Freeze in bags or a container for up to 6 weeks. Defrost before use.

Keto Tomato Sauce Recipe (Sugar-Free) (4)

Spicing it up!

Because this keto marinara sauce only uses 5 simple ingredients, it’s a great base that you can add other flavors to.

It tastes fantastic as it is, of course, but you can change the flavor profile by adding additional spices such as basil or parsley. You can also adjust the heat by adding red pepper flakes or even chopped chili peppers.

A sweet sugar-free tomato sauce?

The fact that this sauce is sugar-free doesn’t mean that it can’t be a little sweet! There are many no-carb sweeteners that you can eat on a keto diet.

I have made this sauce with a little bit of Stevia sweetener and it turned out great. Monkfruit sweetener is also a great option. Just be careful and add a little at a time as both sweeteners are quite strong.

Other healthy low-carb recipes to try

If you liked this recipe, here are some other low-carb recipes you might enjoy:

  • Keto Gravy
  • Keto Ranch Dressing
  • Cauliflower Alfredo Sauce

You can also check out the roundup I created ofHealthy Dinner Recipes for Diabeticsfor even more great recipe ideas.

When you’ve tried this keto tomato sauce recipe, please don’t forget to let me know how you liked it and rate the recipe in the comments below!

Keto Tomato Sauce

4.56 from 52 votes

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Keto Tomato Sauce Recipe (Sugar-Free) (5)

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This is the best recipe for a keto tomato sauce that is full of flavor and can be used in so many recipes. All while only using 5 ingredients!

Author: Christel Oerum

Prep Time: 5 minutes minutes

Cook Time: 30 minutes minutes

Total Time: 35 minutes minutes

Servings: 10

Ingredients

Instructions

Notes

You can use this tomato sauce immediately if desired or it can be stored for later use. To store the sauce, allow it to cool to room temperature first. Once cooled, transfer to an airtight container and refrigerate for up to 5 days.

You can also freeze the sauce after it has cooled to room temperature. Freeze in bags or a container for up to 6 weeks. Defrost before use.

Nutrition Info Per Serving

Nutrition Facts

Keto Tomato Sauce

Serving Size

3 tbsp

Amount per Serving

Calories

58

% Daily Value*

Fat

5.8

g

9

%

Saturated Fat

0.9

g

5

%

Trans Fat

g

Monounsaturated Fat

4

g

Cholesterol

mg

%

Sodium

6

mg

%

Potassium

128.2

mg

4

%

Carbohydrates

1.5

g

1

%

Fiber

0.5

g

2

%

Sugar

1

g

1

%

Protein

0.7

g

1

%

Vitamin A

IU

%

Net carbs

1

g

* Percent Daily Values are based on a 2000 calorie diet.

Course: Side Dish

Cuisine: American

Diet: Diabetic

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Keto Tomato Sauce Recipe (Sugar-Free) (2024)

FAQs

How to make tomato sauce sweeter without sugar? ›

If your tomato sauce is too acidic and verging on bitter, turn to baking soda, not sugar. Yes, sugar might make the sauce taste better, but good old baking soda is an alkaline that will help balance the excess acid.

Does homemade tomato sauce need sugar? ›

Most tomato sauce recipes are based on canned tomatoes, and canning companies carefully regulate the pH level of their products. So, the need to add sugar to tomato sauce is declining, but there may still be exceptions. It's best to make your sauce without sugar at first, then taste it and add a pinch if necessary.

How do you remove sugar from tomato sauce? ›

Add some lemon juice: The tartness of lemon can help cut through the sweetness. Squeeze in a little lemon juice and taste as you go until you achieve the desired balance. Vinegar: Balsamic vinegar or red wine vinegar can also work wonders in reducing sweetness.

Is canned tomato and sauce OK on keto? ›

Not all tomato-based foods are keto-friendly

For instance, many store-bought tomato products, such as tomato paste, tomato sauce, salsa, tomato juice, and even canned tomatoes, contain added sugars. This significantly raises their total carb content, making them more difficult to fit into a ketogenic diet.

How to sweeten tomato sauce naturally? ›

Canned tomatoes are already cooked so that process is halfway there. Fruit and carrots are a very natural way to add mild sweetness, and carrots are my personal favorite for this. Peel them, dice or grate them and add them to your sauce.

Do Italians put sugar in tomato sauce? ›

"A pinch of sugar is a Southern Italian trick that was used when the sauce was made with end-of-season tomatoes that did not get ripe, or the tomatoes were so tart they needed to be balanced," Chiarello explained to Epicurious.

What to use instead of sugar in spaghetti sauce? ›

Simmer 1 cup of shredded carrots or use sweet red pepper instead of green bell pepper. Sauté the vegetables in olive oil to express the sugars before adding them to the sauce. These vegetables will add a natural, mellower sweetness to your sauce than sugar or honey.

How many carbs are in tomato sauce without sugar? ›

Nutrition Facts
NutrientValue
Trans fats0g
Cholesterol
Sodium10mg
Carbs4g
83 more rows

What does adding baking soda to tomato sauce do? ›

Even a small amount of baking soda significantly raises the pH of the sauce. While this reduces acidic taste, it also tamps down on the brightness that gives the tomato complexity.

Why does tomato sauce need sugar? ›

The reason for sprinkling a pinch of sugar into a simmering saucepan of tomatoes is simple: sugar cuts the acidity of the tomatoes and creates an overall more balanced sauce. The exact acid levels in tomatoes can vary quite a bit depending on whether they're fresh or canned, the tomato variety, and the time of year.

What cancels out sugar in cooking? ›

How to Make Food Less Sweet. Add an acid or seasonings such as vinegar or citrus juice; chopped fresh herbs; a dash of cayenne pepper; or, for sweet dishes, a bit of liqueur or espresso powder.

Why are tomatoes not allowed on keto? ›

Can you eat tomatoes on the keto diet? "Tomatoes are keto," says Abby Langer, R.D., author of Good Food, Bad Diet. "They're low in carbs, so they fit perfectly into keto." One whole medium tomato contains roughly 5 grams of carbohydrates, of which 1.5 grams are fiber and 3 grams are sugar.

Can I eat tomatoes everyday on keto? ›

However, although tomatoes are technically a fruit, one medium-sized tomato (about 120 grams) contains only 4-5 grams of carbohydrates and only 3 grams of sugar, making it fine to include in a keto diet.

Are cucumbers keto safe? ›

Cucumbers are made of 90% water and are almost calorie-free. One cup of cucumbers contains only 16 calories and 3 grams of net carbs, making it a sure fit for a keto plan.

How to sweeten up a tomato sauce? ›

Sweeten things up with a little sugar.

If your jarred tomato sauce is too acidic, consider adding a pinch or two of sugar (after all, it makes the medicine go down!).

What can I add to tomato sauce to make it sweeter? ›

Stir in sugar to make a very sweet sauce. If you prefer, you can use honey instead. Add the sugar 1 tsp. at a time, let the sauce simmer for two minutes and taste.

How can I add sweetness to my food without sugar? ›

Adding spices can enhance the taste of food. Cinnamon, nutmeg, ginger, cloves, allspice, mace, cardamom and star anise are commonly associated with sweetness. These spices are often used in baked goods and pair especially well with fruit dishes. Vanilla extract can also make food seem sweeter, perhaps due to its aroma.

How to make canned tomato sauce sweeter? ›

Heat and time can help soften some of the acidity and tinny edge that tomatoes have straight from the can, developing a sweeter, rounder flavor.

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