Sauté Aromatics – Heat olive oil in a pan, add onions, cook for 3-4 minutes, then add garlic and cook for 30 seconds.
Add Tomatoes – Stir in crushed tomatoes, diced tomatoes (if using), and tomato paste. Add sugar if needed.
Season the Sauce – Add salt, pepper, oregano, basil, and red pepper flakes, then mix well.
Simmer – Reduce heat and let the sauce simmer for 30-45 minutes, stirring occasionally.
Enhance Flavor – Stir in fresh basil, balsamic vinegar, and baking soda if using. Adjust seasoning as needed.
Blend (Optional) – Use an immersion blender for a smooth sauce or leave it chunky.
Serve & Enjoy – Use over pasta, pizza, or as a dipping sauce.