INGREDIENTS
3 lb
russet potatoes, (sliced 1/4 inch thick (use a mandolin for perfect and even slices) Place sliced potatoes into a large bowl of cold water. Let sit until ready to use.)
1 cup
onion, (finely chopped)
1 clove
garlic, (minced)
1/4 cup
butter, (plus more for greasing casserole dish)
1/4 cup
flour
1/2 tsp
salt
1/2 tsp
ground nutmeg
1/2 tsp
ground black pepper
3 cups
milk
4 cups
cheese, (old white cheddar)
1 cup
grated parmesan cheese
2 tbsp
parsley, (finely chopped, for garnish - optional)