Slow-Cooker Tomato Sauce


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Average: 4.6 (5 votes)


4 tablespoons olive oil
1 small yellow onion, peeled and finely sliced
3 cloves garlic, peeled and minced
3 pounds (about 20 medium) fresh plum tomatoes, cored, peeled, seeded, and pureed (enough to yield 4 cups)
1/4 cup minced fresh parsley, or 1 tablespoon dried
3 tablespoons minced fresh basil, or 1 teaspoon dried
1 tablespoon minced fresh oregano, or 1 teaspoon dried
salt and pepper, to taste


Turn the slow-cooker on high, let it heat for 5 minutes, and add olive oil, onion, and garlic. Stir and cover. (The pot won't get hot enough to brown them.) Cook for 1 hour, or until onion is soft and wilted. Uncover and add tomatoes, parsley, basil, oregano, salt, and pepper. Reduce the heat to low, and stir. Cook with the cover off for approximately 4 hours. The sauce is done when it is thick and not watery.

Cooking & Recipes


4 cups

Preparation Method

Reader Comments

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Was hoping to read and review

Was hoping to read and review the recipe for Indian Pudding. Got a recipe for Tomato Sauce, instead.


Wanted Indian Pudding. Got

Wanted Indian Pudding. Got tomato sauce!

indian pudding go into it

indian pudding go into it said slow-cooker tomato sauce that a no no

Norman, We apologize. Here is

Norman, We apologize. Here is the link for Indian Pudding:

Definitely doing this when my

Definitely doing this when my tomatoes come in. So tired of paying high prices for foods I can do myself with better quality (non-chemical or gmo).

There are no gmo ingredients

There are no gmo ingredients in this recipe that I see. Pick up a bushel of tomatoes from your local farmers if you don't grow them yourself. Tomato season is just about over here in New York.

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