For every two servings:
2 medium potatoes
1 egg yolk
1/4 cup flour
salt & pepper
1 T butter
Wash and peel potatoes. Grate with the largest hole section of a cheese grater. Remove as much liquid as possible by squeezing grated potatoes in a paper towel.
Fold in egg yolk, flour, and salt and pepper to taste.
Melt butter in a skillet. Form potato mixture into cakes and fry until brown on each side. Serve warm with applesauce or sour cream.