INGREDIENTS
1 cup
cream, half-and-half, milk or a combination, gently heated just until warm
3
eggs, at room temperature
3/4 cup
grated Emmenthal, Gruyère, Cantal or a combination
1/4 cup
grated Parmesan or hard pecorino
1/2 tsp
salt
1/4 tsp
cayenne, or to taste
Butter as needed