The best penne alla vodka recipe-- a silky, creamy tomato sauce (with a secret ingredient) that's easy enough for weeknights and fancy enough for date nights in!
Bring a large pot of salted water to a boil. Add the pasta and cook until just al dente (I usually undercook by a minute), then drain, reserving 1/2 cup water.
While the water is coming to a boil, heat a large skillet over medium heat and add the olive oil. Add the garlic and red pepper flakes and cook, about 30 seconds or so, until just fragrant.
Add in the vodka and cook until about half of the vodka is evaporated, stirring occasionally.
Stir in the marinara, salt, pepper, half and half, and cook for 5 minutes, stirring occasionally, until the sauce has come together. Stir in the parmesan cheese and mascarpone cheese and keep stirring until the mascarpone has melted into the sauce.
Add the cooked pasta to the sauce along with a splash of the pasta water and toss to combine, adding more pasta water as needed if the sauce is too thick.
Serve, garnishing with more parmesan cheese and red pepper flakes as desired before serving.