Creating these delightful Cranberry Brie Bites is easy when you follow these steps:

1. Preheat Oven: Begin by preheating your oven to 375°F (190°C).
2. Prepare the Puff Pastry: Roll out the thawed puff pastry on a lightly floured surface. Cut it into squares, about 3 inches by 3 inches.
3. Assemble the Bites: Place a square of puff pastry on a baking sheet lined with parchment paper.
4. Add Cheese: Place a piece of Brie cheese on top of the pastry square.
5. Top with Cranberry Sauce: Spoon a small amount of cranberry sauce over the Brie, ensuring that it covers the cheese slightly.
6. Season (Optional): If using, sprinkle some chopped rosemary over the cranberries and cheese for added flavor.
7. Fold and Seal: Fold the corners of the pastry square over the top of the filling, pinching the seams to seal them tightly.
8. Brush with Egg Wash: Use a pastry brush to apply the beaten egg over the top of each pastry. This will give them a beautiful golden color when baked.
9. Bake: Place the baking sheet in the preheated oven and bake for 15-20 minutes or until the pastries are golden brown and puffed.
10. Cool Slightly: Remove from the oven and let them cool for a few minutes.
11. Garnish (Optional): Drizzle with honey before serving for an extra layer of sweetness.

These steps guide you in crafting the incredible Cranberry Brie Bites effortlessly and will surely impress everyone who tries them.