How to make
Dissolve the sugar in a pan over low heat until a light caramel forms. Add the butter and stir until it boils.
Peel the apples, cut them into large slices and put them in the caramel. Let them stew for 5 minutes on low heat. Transfer the caramel apples into the baking pan in which the cake will be baked.
Put puff pastry on top so that it covers the apples and the edges are rolled under them. Poke the dough in several places with a fork.
Bake the apple pie for 25 minutes at 390°F (200 degrees), take it out and turn it onto a large plate.