Heat oil in a saucepan over medium
heat. Add onions, garlic, and carrots
and cook until tender, 8 to 10 minutes.
Add tomatoes and their juices, a pinch
of salt, oregano, and basil; bring to
Reduce heat to low and
cook, stirring occasionally until sauce
is thick, about 1 hour. Puree in a food
processor, if desired. Season with salt
Let sauce cool to room
temperature before using on pizza.
(Refrigerate for up to a week, or freeze
for up to two months.)
Refrigerate for up to a week, or freeze for up to two months.