INGREDIENTS
1
(2- to 2 1/2-pound) head Cauliflower
3
Garlic cloves
2
lbs Russet (baking) potatoes
1/4 tsp
Black pepper, freshly ground
1
Salt
1 stick
Butter, unsalted
4 oz
Italian fontina or gruyere
3/4 cup
Parmigiano-reggiano, grated
1 1/4 cups
Whole milk