First, start heating up a pot of water on the stove for the rigatoni. Once it reaches a rolling boil, add salt and pasta. In the meantime, we'll start making the sauce.
8 ounces rigatoni
In a large saute pan, heat up the olive oil and butter over medium heat until the butter is melted.
2 Tablespoons olive oil, 3 Tablespoons butter
Add the chopped onions and saute until soft and translucent, about five minutes.
½ yellow onion (or shallot), finely diced
Then, add the garlic and chili paste and cook for another minute, stirring frequently.
3 cloves garlic, minced, 1 ½ teaspoons chili paste
Now add the tomato paste and vodka (or vegetable stock) to the pan, stir it into the other ingredients well, and cook for about two minutes.
¼ cup tomato paste, ¼ cup vodka (or vegetable stock)
Finally, pour in the heavy cream and reserved pasta water, add the salt and pepper, and simmer for five minutes or until the sauce has thickened.
⅔ cup heavy cream, ¼ cup reserved pasta water, ¼ teaspoon salt, ¼ teaspoon pepper
When the pasta is al dente, it's time to mix the Parmesan cheese into the sauce.
½ cup Parmesan cheese
Drain the pasta and toss it with the sauce, making sure to coat every piece of rigatoni.
Serve with more Parmesan cheese, a few leaves of basil, and a crusty slice of Italian bread. Enjoy!