Prepare the dough with the flour, milk, eggs, melted butter and salt. Bake the crepes as thin as possible in a non-stick pan with little fat and keep warm.
For the filling, heat the butter, add the icing sugar and let it caramelize. Cut the apples into slices and sauté them in the caramel for about 3 minutes. Put a little of the caramel apples on each crepe and fold them into a triangular shape.