In a medium-high heat pot, add the olive oil. Once it is hot, add the garlic and sauté for one minute.
Add the tomato sauce, the water, oregano, salt and black pepper. Bring the sauce to a boil and reduce the heat to low. Let the sauce simmer for 10 minutes.
Add the sugar and the baking soda. Mix it well. Some bubbles will form, but in a couple of minutes, they will disappear.
Adjust the salt and black pepper as per your taste, if needed.
Preheat the oven to 392°F (200°C).
While the sauce is simmering, you can prepare the chicken. Slice the chicken breast in half, creating 2 chicken fillets. Season with salt and black pepper. Then coat the chicken with white flour.
In a bowl, mix the breadcrumbs with 1 Tablespoon of parmesan. Dip the chicken into the beaten egg mixture. Then immediately coat it in the breadcrumbs/parmesan mixture.
Add the chicken into a baking tray and place into the oven. Let it bake 10 minutes on each side.
In a oven-proof baking tray, add the tomato sauce at the bottom. On top, add the chicken and the shredded mozzarella and the remainder 1 Tablespoon of parmesan on top of each chicken fillet.
Grill for 15 minutes, until the cheese melts (and the sauce is boiling)
Serve it on top of spaghetti pasta. Enjoy!