Cook pasta according to package directions
Heat unsalted butter and olive oil in a pan
Sauté minced brown onion and 3-4 cloves minced garlic
Add red pepper flakes and tomato paste
Pour in tomato passata
Add vodka and let simmer
Stir in heavy cream
Season with salt and pepper to taste
Toss cooked pasta with the sauce
Top with grated parmesan
