Thaw the puff pastry sheets and cut in half. Cut the ham into small pieces, mix with the crème double, crème fraîche and 150 g Gouda cheese and season with salt, pepper and sugar.
Fold the panels together and close them on two sides to create a pocket. Fill in a little of the ham and cheese mixture and close the pockets tightly.
Place the bags on baking paper on a grid and sprinkle with the remaining cheese. Bake in an oven preheated to 200 ° C on the middle rack for 15 minutes until golden yellow.
Attention! The filling is very hot right after baking!