3-ingredient tomato sauce

Don't let the scarcity of seasonings fool you.  This sauce is AMAZING.  I suggest doubling the recipe.

1 28-oz can whole peeled tomatoes
5 tablespoons butter
2 onions, peeled and sliced in half across the middle lengthwise

Put the ingredients in a saucepan and bring to a boil, then reduce to a simmer and cover.  Crush the tomatoes with your hands before adding them to the pot or, if that incites squeamishness from those consuming your food, you can crush the tomatoes against the side of the pan with a spoon during cooking.  Simmer for 45 minutes to an hour, stirring occasionally. Remove the onion and discard.  The sauce should be velvety and smooth, with the exception of the chunks of tomato.


Adapted from Smitten Kitchen