Easy Tomato Sauce

makes 4 servings

Ingredients:

• 4 tablespoons extra virgin olive oil
• 1 onion, chopped
• 3 tomatoes, chopped
• 1 tablespoon tomato puree
• salt and pepper to taste

Directions:

1. In a large skillet over medium heat, cook onion in olive oil until translucent.  
2. Stir in tomatoes, cook until juice begins to thicken.  
3. Stir in puree, salt and pepper.  
4. Reduce heat and simmer 15 minutes more, until rich and thick.  

From   http://allrecipes.com/recipe/easy-tomato-sauce/