Sbarro Tomato Sauce - cooking recipe

Ingredients

2 (28 ounce) cans crushed tomatoes
1 (28 ounce) tomato can cold water (more or less to desired thickness)
4 ounces grated romano cheese
12 ounces olive oil
10 ounces diced onions
1 ounce chopped fresh garlic
1/2 ounce chopped fresh Italian parsley
3 ounces cooking sherry
Spices
2 tablespoons salt
2 teaspoons oregano
1/2 teaspoon crushed red pepper flakes
1/2 teaspoon black pepper
2 teaspoons basil

Preparation

Heat oil until hot but not smoking. Add onions and saute until.
almost browned. Add garlic.
When garlic is brown, de-glaze pan with sherry. Add parsley and stir.
Add tomatoes, water, cheese, and spices. Mix well.
Bring just to boil and simmer one hour.