Roll out the dough and cut out 6 equal rectangles.
Put a little nutella in the center of each of the cut rectangles, then close the book and seal the edges well.
Transfer the puff pastries, with all the parchment paper, onto the baking sheet pan, then make 3 oblique cuts on the surface of the upper layer of each puff pastry, brushed with milk and decorated with sugar.
Then cook for about 15 minutes or until browned at 200 ° C in a preheated ventilated oven.
Nutella puff pastries are ready, let them at least cool slightly before serving.