
In a medium saucepan, add the olive oil and garlic and cook over medium heat for about a minute or until fragrant.
Add the tomatoes, tomato paste, onion powder, sugar, Italian seasoning, basil, and pepper flakes to the pan. Stir well to combine. Next, add salt and some freshly ground black pepper to taste.
Bring the sauce to a boil. Reduce heat to low and simmer. It should take 20-30 minutes to reach the desired thickness and depth of flavor, but that can change depending on your stove, altitude, and climate.
Let it cool and store it for later, or whip up your favorite pizza dough recipe and spread the sauce on it.