Preparation: Finely cube the onion and mince the garlic. Cut the tomatoes into chunky pieces.
Cooking: In a pot, heat olive oil and butter over medium-high heat. Sauté the onion and garlic for 3 minutes. Blend the tomatoes until smooth and add them to the pot. Stir in bay leaves, tomato paste, Worcestershire sauce, water, and spices. Bring to a boil, then reduce heat and let it simmer for 30 minutes.
Serve: Remove the bay leaves and blend the sauce until smooth. Enjoy your marinara sauce!