Great recipe for tomato sauce to can.
Blanch to peel whole tomatoes
Fill a pot half full of cut tomatoes
Add a stick of butter and one onion cut in half
Mash tomatoes down occasionally. Simmer until thick.. Add salt to taste. Remove onion.
I use canned whole tomatoes when fresh isn't available or any food that calls for tomato sauce. It's hard to eat jar tomato sauce after having it this way.