Cook pasta according to package directions for al dente. Drain, reserving 1 cup of pasta water.
12 ounces penne pasta
Heat butter and oil over medium heat. Add onions and garlic and sauté for a minute until onions are transparent.
2 Tablespoons butter, 2 Tablespoons olive oil, 1 medium onion, finely diced, 4 cloves garlic, minced
Stir in tomato sauce, sugar, salt, and pepper. Simmer over low heat for 25 to 30 minutes, stirring occasionally.
2 (15 ounce) cans tomato sauce, 1 teaspoon salt, ¼ teaspoon ground black pepper, dash of sugar
Remove from heat and add heavy cream and parmesean cheese. Mix well.
1 cup heavy cream, ¼ cup grated parmesan cheese
Add pasta and stir (thin with pasta water if needed).
Add to pasta bowls and top with chopped basil and a sprinkle of parmesan cheese before serving.
fresh basil, chopped