Penne alla Vodka

INGREDIENTS kosher salt 1 lb. penne rigate 2 tbsp. extra-virgin olive oil 1/2 c. chopped onion 3 cloves garlic, minced 1 28-oz. can crushed tomatoes 1/2 c. vodka Freshly ground black pepper 1/4 c. heavy cream 4 tbsp. cold butter, cut into pats 1/2 c. freshly grated Parmesan 1/4 c. chopped fresh parsley DIRECTIONS Bring an 8-quart product pot of thing to a boil...