This cake, served upside-down, is even “created” upside-down! The topping is made first and put in the bottom of the pie pan. The cake is added next and baked until golden brown. The brown sugar-butter mixture caramelizes as it bakes giving the pears and nuts a delicate candy-like coating. After baking, the cake is inverted and served upside-down – or is it right-side up?