Gratin Dauphinois(Potatoes "Au Gratin") - cooking recipe

Ingredients

5 lb. potatoes
1 qt. milk
2 garlic cloves
1 egg
2 Tbsp. sour cream
grated nutmeg
salt to taste
bread crumbs
grated Swiss cheese

Preparation

My father was Puerto Rican and Cuban.
My mother is German and Irish.
When they got married, my mother got my Cuban grandmother's recipe for Spanish rice.
Being a picky eater herself and having 4 kids, my mom distilled the recipe down to a mild version without all the \"slimy\" things in it that most kids won't eat.
I jokingly call it my mother's Irish Spanish rice!
Each year on Three King's Day (January 6), I bring this rice in for my children's classes.