Let the dough sheets rest at room temperature for about 15 minutes. Melt butter in a small pot, let it cool down a little. Wash the apple thoroughly, grate it dry, cut out the core with an apple corer.
Slice the apple into thin slices. Slice the vanilla pod lengthwise, scrape out the pulp with a knife. Mix orange peel, cinnamon, vanilla pulp and sugar well.
5 Remove the dough sheets from the package. Close the remaining dough well and use it for other purposes. Place a pastry sheet on a well greased baking tray. Brush with some melted butter. Layer the remaining pastry sheets one by one, brushing each sheet with butter and finishing with butter.
Cover with apple rings and sprinkle with cinnamon-orange-sugar. Cut into 28 pieces with a pastry wheel. Carefully pull apart a little and bake in a preheated oven (electric cooker: 200 °C/ circulating air: 175 °C/ gas: see
manufacturer) bake for about 12 minutes. Remove from the oven, place on a cake rack and let cool. Arrange on a plate.