Crock Pot Tomato Sauce
This Crock Pot Tomato Sauce is a healthy family staple and something to stock in your freezer to make quick meals easy. Homemade tomato sauce is not only delicious and so much healthier than store-bought, but it’s incredibly easy, too!

Stock your freezer with tomato sauce
I’ve been kicking myself since last tomato season. Why, you ask? Because it never occurred to me to stock up my freezer with homemade tomato sauce!
However, now that those delicious, juicy ruby fruits (yes, they are a fruit) are filling up every garden in sight, I’m not making the same mistake twice. I’m going on a tomato sauce-making bender until I can’t see straight….or my freezer door won’t close….whichever comes first.
I think for most families (unless they have issues with nightshades), tomato sauce is a household staple. Throw it on top of whole grain pasta or zoodles and you have an easy dinner in no time. And who doesn’t love pizza? You need tomato sauce for that, usually!
Sugar
However, have you ever looked at the ingredients listed on a jar of commercially made tomato sauce? Chances are that you will see “sugar” in that list….even in the organic tomato sauces. And it’s usually not the last item on the list, meaning there is probably a good amount of sugar being poured over that spaghetti squash you were planning on serving for dinner.
Sugar is traditionally added to tomato sauce to help cut the acidity of the tomatoes. However, tomatoes are so naturally sweet on their own that adding a bunch of refined sugar to a batch of sauce is quite unnecessary.
In fact, buying commercially prepared tomato sauce at all is unnecessary! Not when you can easily make it in your crock pot on a lazy Sunday afternoon.
Crock Pot Tomato Sauce
This sauce takes just minutes to throw into the slow cooker and then simmers away for hours, blending all the natural flavors and ingredients into one wholesome sauce.
At the end of the day, you have a nice little stockpile of tomato sauce to enjoy for weeks without the added sugar or preservatives.
Recipe notes
- This recipe makes about 48 ounces of sauce.
- This sauce takes just minutes to throw into the slow cooker and then simmers away for hours, blending all the natural flavors and ingredients into one wholesome sauce.
- Enjoy this crock pot tomato sauce for weeks – without the added sugar or preservatives.
Other delicious sauce recipes you are going to love…
- Strawberry Beet Instant Pot Applesauce
- Creamy Cauliflower Alfredo Sauce (vegan)
- Roasted Red Pepper Sauce
- Easy Peanut Sauce
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Crock Pot Tomato Sauce
Ingredients
- 6 cups diced tomatoes
- 1/2 tbsp medium onion, chopped
- 2-3 tbsp cloves of garlic, minced
- 1/4 cup fresh basil, chopped
- 1 teaspoon dried oregano
- 1-2 teaspoons sea salt
- 1/2 teaspoon dried thyme
- 1/2 teaspoon ground black pepper
- 1 tbsp bay leaf
- 1 teaspoon honey or maple syrup, (optional and omit if you are on Whole30)
Instructions
- Combine all of the ingredients in the crock pot and cook on low for 6 hours.
- Once the sauce is done cooking, remove and discard the bay leaf. Using an immersion blender, puree the sauce to a smooth consistency. If the sauce is too thin for your liking, add tapioca starch or arrowroot one tablespoon at a time until the desired consistency is reached.
- Allow the sauce to cool completely. Package into air tight containers and store in the fridge for a week or in the freezer for months!
Notes
- This recipe makes about 48 ounces of sauce.
- This sauce takes just minutes to throw into the slow cooker and then simmers away for hours, blending all the natural flavors and ingredients into one wholesome sauce.
- Enjoy this crock pot tomato sauce for weeks – without the added sugar or preservatives.
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Don’t forget to take the bay leaf out before you use the immersion blender!!!
Absolutely!
do you need to peel the tomatoes?
Nope!
can you can it?
You might be able to. Though I have never done it, nor do I have much canning experience, so I can’t say for certain how to change the recipe to do so.
Do some research about canning tomatoes, you might need to use a pressure cooker rather than regular canning methods for safest results. I don’t have experience with this, but I seem to remember that tomatoes require some additional attention that your regular jams and jellies don’t.
you can pressure can it, or you can add lemon juice and water bath it.
what if you don’t have a crock pot?
My sauce turned out really thin (it’s more like soup than sauce) and even adding the tapioca starch it is not thickening, any suggestions?
Try cooking the sauce for a bit longer in the crock pot with the lid off. This should cook off some of the excess tomato juice.
Tomatoes are so acidic that you do NOT need to use a pressure cooker if you want to can them. Been doing this for years, as has my canning friends.
You should also Blanch there tomatoes before use and add some Italian seasoning. Then, you will have a modified Italian Sauce. Use a LOT of garlic.
About how many tomatoes for 6 cups?
Has anyone made this with the peel skin on the tomatoes? I didn’t k ow you had to take them off till reading the comments…
You don’t have to peel the tomatoes. Some people just opt to. I make this recipe all the time with the skins on.
Can you double batch it, if you have a large crockpot?
Absoutely
Are your cup sizes different to ours? (Australia 1 cup = 250ml). Made the sauce but only got 1 jar. Tastes good though!
We used to preserve a lot of tomato sauce – it always helped to survive cold winters! Homemade is always the best.