Basic Italian Tomato Sauce
From Xandria

1 large onion diced
2 cloves garlic, minced
1 can tomato paste
2 large cans tomato sauce (preferably made from fresh tomatoes)
1 cup water
1/3 cup sugar
  Salt and pepper to taste

Cook onion in a small amount of olive oil until golden. Add garlic and sauté 3 minutes more.

Add all the other ingredients. Bring to a simmer and cook very slowly until the sauce is thick and deep red.

Makes about 2 quarts.