INGREDIENTS
2 cloves
Garlic
1 cup
Onion
2
sprigs Thyme
2
lbs Yukon gold potatoes
1/2 tsp
Nutmeg, freshly ground
1
Salt and freshly ground pepper
1 tbsp
Olive oil
1 tbsp
Butter, unsalted
1 cup
Fontina cheese, grated
2 cups
Heavy cream
1/2 cup
Parmigiano-reggiano cheese, grated