1 tablespoon butter

3 tablespoons good-quality olive oil, such as Tuscanini

1 large onion, finely diced

3 cloves garlic, finely minced or 3 cubes Gefen Frozen Garlic

28 ounces finely diced (or crushed) tomatoes, such as Tuscanini Crushed Tomatoes

1/2 teaspoon dried basil

1 tablespoon sugar

salt, to taste

black pepper, to taste