Fill your large pot with salted water.
Bring it to a rolling boil.
Add the penne pasta to the pot.
Cook according to package directions until al dente.
Reserve 1 cup of pasta water.
Drain the pasta and set aside.
Heat olive oil in your large skillet.
Add minced garlic and red pepper flakes.
Sauté for about 1 minute until fragrant.
Don't let the garlic burn or brown.
Pour vodka into the pan carefully.
Let it simmer for 2-3 minutes.
This cooks off the alcohol completely.
The vodka enhances the tomato flavor beautifully.
Pour in the crushed tomatoes now.
Season with salt and black pepper.
Let the sauce simmer for 10 minutes.
Stir occasionally to prevent sticking.
Lower the heat to medium-low temperature.
Slowly pour in the heavy cream.
Stir constantly to combine everything smoothly.
Simmer for 5 more minutes gently.
Add the cooked penne to sauce.
Toss everything together until well coated.
Add pasta water if sauce seems thick.
Sprinkle with fresh basil and Parmesan.
Serve hot and enjoy immediately!