Ingredients:
4 Tbsp. butter
1 clove garlic, crushed
2 ½ Lb. potatoes (8 medium), peeled and sliced very thin
2 apples, peeled, cored, quartered and sliced very thin
5 oz. Gruyere (or Swiss) cheese, grated
6 Tbsp. prepared horseradish
Salt and fresh ground white pepper, as needed
1 ½ C. milk
1 C. heavy cream
2 eggs
Instructions:
Butter a 9 X 12 inch baking pan. Rub the pan with garlic clove; discard clove. Layer the potatoes, apples, cheese and horseradish in that order, seasoning with salt and pepper. Repeat, finishing last layer with grated cheese. Combine milk and cream in saucepan; bring to simmer. Remove from heat and add egg yolks. Pour mixture over layered potatoes in pan. Bake at 375ºF until cooked through, about 50 minutes. Finish under the broiler until top is golden brown.