Step 1

Heat oil in large dutch oven over medium heat. Add onions and cook until they are translucent and soft - about 10 minutes.

Step 2

Add minced garlic and stir until the garlic is fragrant - about 1 minute.

Step 3

Add both cans of tomatoes (with juice) and salt and pepper. Reduce heat to a gentle simmer and cook uncovered for 30 to 45 minutes. (I like a fresh, more astringent flavor in my sauce, so I cook it for the least amount of time. If you're looking for a deep, robust flavor cook it longer.)