I'm going to show you a really simple pizza sauce recipe that I learned from my friends Italian grandmother, Roberta "Bobby". Links to many of the ingredients I use are at the bottom of this page.
Can of tomatoes
ground red pepper
Tomato paste (optional)
Start off with high quality tomatoes.
This brand of tomatoes is commonly used in pizza shops in NYC. Link to buy on Amazon.
Open the tomatoes and place them in a container add ground red pepper, dried oregano and a squeeze of tomato paste. Add salt to taste.
You don't cook this sauce because it's meant to go on pizza and it will cook in the over while the pizza is cooking. If you cook the sauce it will lose most of it's brightness/sweetness.
Now you're ready to make grandma pizza.