Cook the Penne Pasta: Begin by bringing a large pot of salted water to a boil. Add the penne pasta and cook according to the package instructions, usually around 10-12 minutes
Once done, drain the pasta and set it aside, reserving about 1/2 cup of the pasta water.
Sauté the Onions and Garlic:While the pasta is cooking, heat the olive oil in a large skillet over medium heat.
Add the finely chopped onion and cook for about 3-4 minutes until softened. Add the minced garlic and cook for an additional minute, stirring frequently to prevent burning.
Deglaze with Vodka: Carefully pour the vodka into the skillet with the onions and garlic.
Cook for 2-3 minutes, allowing the alcohol to evaporate, which leaves behind a subtle flavor that adds depth to the sauce.
Add the Tomatoes:Stir in the crushed tomatoes, red pepper flakes (if using), and a pinch of salt and pepper.
Let the sauce simmer for 10 minutes, stirring occasionally, until it thickens and the flavors meld together.
Incorporate the Cream: Lower the heat and slowly pour in the heavy cream, stirring constantly to create a smooth, creamy sauce. Let the sauce simmer for another 2-3 minutes until it's heated through.
Toss the Pasta:Add the cooked penne to the skillet, tossing to coat the pasta evenly in the sauce. If the sauce is too thick, add a little reserved pasta water to thin it out to your desired consistency.
Finish with Cheese: Stir in the grated Parmesan cheese and mix until it's melted into the sauce. Taste and adjust the seasoning with more salt and pepper, if needed.
Serve:Serve the penne alla vodka hot, garnished with fresh basil and extra Parmesan on top. Enjoy with a side salad or garlic bread for a complete meal.