How to Thicken Tomato Sauce? Easy Guide to Thicken Tomato Sauce

Not only is it difficult to cook a sauce without any liquid, but the flavor of it still remains lacking. This tomato sauce has been cooked to perfection and will have your guests clamoring for more!Try it out and you will not be disappointed.Ingredients: 3 tablespoons olive oil 2 medium yellow onions, chopped finely 1…