Ingredients
28 oz san marzano tomatoes
1 Med yellow/sweet onion, peeled and cut in half
5 T butter
salt
(Optional add 1/2 - 1 t pepper flakes or to taste 1/2 way through simmering)
Preparation
combine tomatoes, onion butter in sauce pan and simmer for 30-45 min. butter should separate and pool on top of sauce
smash tomatoes to desired consistency while simmering or put in blender for smother sauce.
