Description

This Slow Cooker Tomato Sauce is rich, smooth, and gently simmered all day with canned tomatoes, basil, onion, and butter for a low-stress, hands-off tomato sauce that works for pasta and more.

Ingredients

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2 (28-ounce) cans San Marzano tomatoes
4 tablespoons butter
1 medium onion, peeled but left whole
2 garlic cloves
1 tablespoon coarse kosher salt (see note)
1 tablespoon turbinado sugar
3 sprigs of fresh basil
1 teaspoon dried oregano

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Instructions

Add all ingredients to a large slow cooker and cook on high for 4-6 hours or low for 6-8 hours, stirring occasionally if possible.
Once done, remove the onion, garlic cloves and basil and discard.
If desired, break up the tomatoes with a potato masher, or you can partially or fully puree the tomato sauce.
Taste and adjust the seasoning, adding more salt when necessary.
Serve as desired.

Notes

Why specifically San Marzano tomatoes? Simply because they offer the best flavor for this simple tomato soup using canned tomatoes. Most grocery stores will sell canned San Marzano, so be sure to grab them if you can to use in this recipe.

If your slow cooker has a tight fighting lid that prevents any evaporation, if you are able to, do not snap the lid closed. It’s best if the lid isn’t very tight fitting to allow some minor evaporation to occur.