Preheat oven to 400°F (200°C).
Core and thinly slice the apple; toss in a bowl with honey and cinnamon.
On a floured surface, roll out the puff pastry and cut into four 3-inch squares.
Place a slice of Brie and a few apple slices in the center of each square; fold corners over to create pockets.
Brush the tops with egg wash.
Bake on a parchment-lined baking sheet for 15-20 minutes or until golden brown. Serve warm.
