Making Baked Cranberry Brie Bites is straightforward and enjoyable. Here’s a step-by-step guide to help you create these tasty morsels:

1. Preheat the Oven: Begin by preheating your oven to 375°F (190°C).
2. Prepare Puff Pastry: On a lightly floured surface, roll out the puff pastry sheet until it’s about 1/8-inch thick. Cut it into squares, approximately 3×3 inches each.
3. Prepare Baking Sheet: Line a baking sheet with parchment paper for easy cleanup.
4. Assemble Bites: Place a puff pastry square on the baking sheet. In the center, add a cube of brie and a spoonful of cranberry sauce.
5. Seal the Bites: Fold the corners of the pastry square over the filling and pinch to seal securely, forming a neat little pouch.
6. Brush with Egg Wash: Using a pastry brush, apply the beaten egg to the top of each pastry. This will give them a beautiful golden color as they bake.
7. Sprinkle Seasoning: Optionally, sprinkle a pinch of sea salt and black pepper on top of the bites for added flavor.
8. Bake: Place the baking sheet in the preheated oven and bake for 12-15 minutes or until the pastry is golden brown and flaky.
9. Cool Slightly: Remove from the oven and let them cool for a couple of minutes.
10. Garnish and Serve: If using rosemary, add a small sprig to the top of each bite before serving.

These steps will guide you in creating wonderfully delicious Baked Cranberry Brie Bites that will be the highlight of your gathering.