Preheat your oven to 375°F (190°C).
Roll out the thawed puff pastry on a lightly floured surface.
Place the brie cheese in the center of the rolled pastry.
In a mixing bowl, combine the cranberries, pecans, brown sugar, honey, and thyme.
Spoon the cranberry mixture onto the brie cheese, covering it generously.
Fold the puff pastry over the brie, pinching the seams to seal it.
Brush the top and exposed parts of the pastry with the beaten egg.
Place the wrapped brie on a baking sheet lined with parchment paper.
Bake for 20-25 minutes or until the pastry is golden brown.
Remove from the oven and let cool for a few minutes before serving.