Tomato Butter Sauce Recipe (with Onion and Butter)

Tomato Butter Sauce Recipe (with Onion and Butter)

Last Updated on May 6, 2026 by Jeroen Kaslanders

Tomato Butter Sauce Recipe with Onion and Butter

If you’re looking for a rich, creamy, and utterly satisfying addition to your culinary repertoire, look no further than this simple yet delicious tomato butter sauce. This sauce combines the tangy sweetness of tomatoes with the rich, comforting taste of butter, enhanced by the savory depth of onions. Perfect to serve over pasta, as a base for pizza, or as a sophisticated dip for bread, this versatile sauce is sure to impress.

Ingredients:
– 1 large onion, finely chopped
– 4 tablespoons unsalted butter
– 1 can (28 ounces) of whole peeled tomatoes
– Salt to taste
– Sugar (optional)

Instructions:

1. Start by preparing your ingredients. Finely chop the onion and set aside. If you’re using whole peeled tomatoes from a can, you might want to crush them slightly or give them a quick pulse in a blender for a smoother texture.

2. In a medium-sized pot or deep skillet, melt the butter over medium heat. Add the chopped onions and sauté them until they are translucent and begin to caramelize lightly; this usually takes about 5 to 8 minutes. The key here is to cook them slowly enough that they sweeten without burning.

3. Once the onions are ready, add the whole peeled tomatoes along with their juice into the pot. Use your spoon to break down the tomatoes if you haven’t already crushed them. Stir everything well so that the onions and tomatoes are thoroughly combined.

4. Reduce the heat to low and let the sauce simmer gently for about 30 minutes. Stir occasionally to prevent sticking and ensure even cooking. As it simmers, you’ll notice that the sauce starts thickening and intensifying in flavor.

5. After about 30 minutes of simmering, season your sauce with salt to taste. If your tomatoes are particularly acidic or tangy, you might want to add a pinch of sugar at this point—this helps balance out the flavors.

6. Continue cooking for an additional 10 minutes after seasoning before removing from heat.

Tips:
– For an even richer flavor profile, consider adding herbs like basil or oregano during the last few minutes of cooking.
– This sauce can be blended smooth if desired; simply use an immersion blender directly in the pot or transfer into a blender once slightly cooled.
– Store leftovers in an airtight container in the refrigerator for up to one week or freeze for longer storage.

This tomato butter sauce is remarkably easy yet flavorful enough to elevate any dish it accompanies. Whether it’s tossed with some freshly cooked pasta or used as a flavorful topping for grilled meats, its creamy texture and robust flavor profile make it an ideal choice for various dishes.

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About the Author: Jeroen Kaslanders