After 1 hour, remove 1 dough piece from refrigerator, place on lightly floured parchment paper, sprinkle dough and rolling pin with flour and roll out to a disk roughly 20cm diameter.
Bake in 200C/400F preheated oven for 8 minutes.
While one pastry disk bakes, take out next dough piece from refrigerator and repeat above steps.
When pastry bakes it will not bake in a perfect circle. Using a springform pan or round plate, cut circled layer. (See notes.)
Repeat all steps until all dough is baked. Once all pastry disks are baked, begin to layer cake on plate you will use to serve (tricky to transfer, so I find it simpler this way). Start layers with cream on plate so pastry won't slide.
Once all layers are covered with pastry cream, cream top and sides too.
Cover with cling wrap/food wrap making sure to touch wrap to cream. (See notes.) Refrigerate for 6 hours or overnight. For a softer texture, overnight is best.
After cooling overnight, carefully remove cling wrap. Decorate as you wish and serve chilled.