I love apple pie/tart/pizza with Nutella and am always looking for recipes that use both. I have a pound of ground hazelnuts in my pantry waiting to be made into something yummy. I pressed half a cup of ground hazelnuts onto one unbaked 10-inch pie shell, sprinkled 2 tablespoons sugar then layered thin apple slices, poured ¼ cup of melted butter all over, sprinkled 3 more tablespoons of sugar and baked the tart for 40 minutes. The best part is the slightly burnt caramelized pieces, and with a drizzle of Nutella, it is just divine.
A variation of this tart is using ground almonds in place of hazelnuts on the tart shell and adding a layer of almond meringue before layering the apple slices, then brushing the top with warmed apple jelly after baking, instead of drizzling Nutella.