Cut the fresh puff pastry into pieces approx. 5 x 8 cm, brush with the egg yolk milk and bake according to the instructions on the package.
Mix the margarine / butter with the sugar until foamy, mix with the prepared paradise cream and add eggnog to taste. The cream remains somewhat liquid, the finished cream cool for approx. 2 hours so that it becomes a little firmer.
Halve the baked puff pastry pieces, fill the lower half with the cream, dust the lid with powdered sugar and place on the cream.