Ingredients:
4 large russet potatoes
3 tablespoons softened butter
½ cup milk or heavy cream
½ cup white cheddar cheese, grated
1 egg yolk
Salt and pepper, according to preference
4 large russet potatoes
3 tablespoons softened butter
½ cup milk or heavy cream
½ cup white cheddar cheese, grated
1 egg yolk
Salt and pepper, according to preference
