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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!
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.
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.
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.
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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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!
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.
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.
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.
Baking soda plus acidic tomatoes equals sweeter tomato sauce. One of the differences between Roma and San Marzano canned tomatoes is acidity levels. Lowering the acidity of any old canned tomato is as simple as adding a pinch of baking soda to the sauce.
A little sugar can make the rest of the flavors shine a little brighter, akin to adding vanilla to a chocolate cake. The goal is to amplify the natural sweetness of the tomatoes, not to turn the sauce sugary, so start with a pinch and work up if needed.
"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.
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.
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. A little pinch should do the trick.
If the reason you're wanting to “sweeten” the sauce is because the tomato is too tart [highly acidic] then a pinch of baking soda should do the trick. Or if you really like your sauce sweet for the sake of sweetness, then add a carrot or bit of sweet potato while it's cooking.
"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.
Approximately three dashes or ¼ teaspoon of nutmeg is plenty for a jar of tomato sauce. If you are making a large batch, add a bit more for good measure. While the flavor should be subtle, you still want it to make the other ingredients shine, so feel free to play around with the quantity until you get it just right.
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.
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.
You do not have to limit vegetables if you are on the keto diet or are considering it. Plenty of low-carb vegetable options include arugula, asparagus, bell peppers, broccoli, Brussels sprouts, cauliflower, kale, mushrooms, spinach, and tomatoes.
Despite the many health benefits of fruit, there is an issue with some fruits on the keto diet. Grapes and bananas, for instance, contain high quantities of carbs. 1 cup of grapes has approximately 26 grams and a medium banana, 24 grams of carbohydrate. As a rule, these fruits should be avoided.
Since most people following the diet are restricted to between 20 and 50 grams of net carbs per day, and the average ranch dressing is between 2 to 3 grams of net carbs per serving, it can be easily paired with a variety of healthy foods while on a ketogenic diet.
Cottage cheese, like ricotta, is not as keto-friendly, and you should limit the amount you eat if you're on a strict keto diet, says Weiss. While cottage cheese is known for its high protein content, it also contains a relatively high amount of carbs and not that much fat, making it a less-than-ideal choice for keto.
Traditional store-bought ketchup is a definite no-no on the Keto Diet. It's often made with added sugar and corn syrup. It's one of the danger foods for the Keto Diet.
Another method is to add about a 1/4 teaspoon of baking soda per quart. It won't add flavor as sugar will, but it will neutralize the acid. Don't overdo it as it will make the sauce taste salty.
The author states that baking soda can be an excellent way to resolve the issue, though they don't promise it will work every single time. Rossetto Kasper recommends you try adding a small pinch of it to your sauce, stir it a few times, and taste.
Introduction: My name is Wyatt Volkman LLD, I am a handsome, rich, comfortable, lively, zealous, graceful, gifted person who loves writing and wants to share my knowledge and understanding with you.
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