Ingredients

• 3 tablespoons olive oil
• 2 onions, finely chopped
• 1 (28 ounce) can tomato puree
• 1/2 cup water
• 2 teaspoons dried oregano
• 1/2 teaspoon dried basil
• 1/2 teaspoon salt
• 1/4 teaspoon ground black pepper

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Instructions

1. Heat olive oil in a saucepan over medium heat. Add onions; cook and stir until just starting to turn golden, 5 to 8 minutes. Stir in tomato puree, water, oregano, basil, salt, and pepper.
2. Bring tomato sauce to a simmer. Reduce heat to medium-low; cover and simmer until flavors blend, about 30 minutes.