Thaw the puff pastry. Preheat the oven to 150 ° C top / bottom heat.
Peel and core the apples. Cut into small pieces.
Heat the pan, add the butter. When this has run, add the apple pieces, then mix in the sugar and cinnamon. Add the lemon juice. Simmer until the apples are soft.
Fill the puff pastry pockets with the compote and close the edges with a fork. Bake for 20 minutes at 170 ° C.
After cooling, sprinkle with powdered sugar.
Fresh whipped cream or vanilla sauce tastes good with it.