INGREDIENTS
1
head of cauliflower, chopped into tiny florets
1 tbsp
olive oil
1 tsp
kosher salt, plus more for the pasta
1 tsp
black pepper
8 oz
elbow pasta
8 oz
Gruyère, shredded
2 1/2 cups
heavy cream
1 clove
garlic, minced
1 tsp
ground mustard
1/4 tsp
ground nutmeg
cayenne, optional
3 oz
Parmigiano-Reggiano, finely grated