1 lb 5 oz penne
7 T unsalted butter
1/2 red pepper flakes, or more to taste
1 cup less 2 T vodka
1 scant cup tomato sauce
1 scant cup heavy cream
1 t coarse salt
1 cup Parmesan cheese
Cook pasta according to package directions. Meanwhile, warm serving bowl.
Melt butter in large skillet. Add pepper flakes and vodka, and simmer for 2 minutes. Add tomato sauce and cream, and simmer for 5 minutes. Add salt.
When pasta is cooked, drain well and toss with sauce and cheese in skillet. Transfer to warmed bowl and serve immediately.