In a bowl, mix all the crust ingredients until you get a thick dough. Press into the baking tray. Use a fork to make small holes in the dough. Set aside.
Prepare the apple slices in a bowl by coating them with a mix of the melted butter, brown sugar, vanilla, allspice, and nutmeg.
Place the apple slices on top of the pie crust and bake for 15 - 20 minutes.
For the sugar glaze, mix in a small bowl the confectioner’s sugar and milk until you get the desired consistency.
Remove the pie from the oven and top it off with the sugar glaze and caramel sauce. Cut into squares.