The Irish would use Bramley cooking apples for this recipe, large misshapen lumps of apples that bake up beautifully. Use the tartest baking apple you can find, such as Jonagolds, Northern Spy, or Granny Smith. Sprinkle the apple slices with a bit of lemon juice before adding the flour and sugar, to make the flavor tarter.
If serving Potato-Apple Cake as a supper by itself, place each warm slice in a bowl and top with a splash of heavy cream, unsweetened. Eat with a spoon.
Published by Skyhorse Publishing, New York City.