1 28 oz can San Marzano (or Italian style) Plum Tomatoes
1 large Onion
1 clove garlic
salt & pepper to taste
Fry the onion and garlic until the onion is translucent.
Add the tomatoes and break them up with a fork. Cook over low- medium heat for about 45 mins. Let cool.
At this point I like to blend the sauce in a food processor and refrigerate so that it goes on to the pizza cold but this step is not necessary.