Step 1: Start by preheating your oven to 375°F (190°C) and lining a baking sheet with parchment paper.
Step 2: Roll out the thawed puff pastry sheet on a lightly floured surface to smooth it out and create a slightly larger rectangle.
Step 3: Using a sharp knife, cut the pastry into 24 equal squares or rectangles. This will be the base for your Cranberry Brie Bites.
Step 4: Place a small piece of brie cheese and a teaspoon of cranberry sauce in the center of each pastry square.
Step 5: Gently fold the corners of each square towards the center, creating a small pastry parcel. Ensure the edges are sealed.
Step 6: Transfer the filled pastry parcels to the prepared baking sheet.
Step 7: Brush each parcel with the beaten egg, giving them a beautiful golden shine.
Step 8: Garnish each bite with a fresh rosemary sprig for a touch of aromatic elegance.
Step 9: Bake in the preheated oven for approximately 12-15 minutes, or until the Cranberry Brie Bites are golden brown and the cheese is oozy.