Author Notes: This recipe is inspired by the classic tomato, butter, and onion tomato sauce but has a bit more depth of flavor with the addition of a parmesan rind, cayenne, and sugar. —Leslie
28 oz. can of whole tomatoes
stick salted butter
onion, cut up into 4 pieces
- In a medium sized sauce pan add all of the ingredients.
- Heat pan over medium heat. Once it comes to a simmer, lower to heat to low.
- Let simmer for 1 hour.
- Mix every 10 minutes.
- After 1 hour, take out the onions and parmesan rind.
- Blend with an immersion blender until smooth.