Heat the olive oil in a
large frying pan.
Add the tomatoes and let them simmer for 2-3 minutes.
Add the garlic, the basil,
the oregano, the red and black peppers and salt.
Mix thoroughly until well blended.
Simmer for 15 minutes once it comes to a boil.
It should have thickened slightly by this time.
Mix in the tomato puree.
You have to leave to cool for at least 20 minutes before using on your pizza.