Heat the oven to 180° C (360° F). Place the puff pastry on a lined baking tray.
Halve the apple and the pear and remove the core. Cut out three wedges from each fruit half and place them on the puff pastry. Use a knife or a pastry wheel und cut around the fruit, leave a margin and two leaves on top.
Melt the butter and mix with sugar and cinnamon. Brush on the fruit and pastry. Bake in the oven for about 20 minutes until the pastry turns brown.