Making Pistachio-Crusted Brie Bites is a straightforward process. Follow these steps to ensure success:

1. Preheat Oven: Preheat your oven to 400°F (200°C).
2. Prepare Puff Pastry: Roll out the thawed puff pastry on a lightly floured surface. Cut it into squares, about 4 inches by 4 inches.
3. Prepare Brie: Slice the brie cheese into smaller wedges or leave it whole, depending on your preference.
4. Chop Pistachios: Finely chop the shelled pistachios and place them in a bowl. If desired, mix in the chopped rosemary or thyme for added flavor.
5. Assemble Bites: Place a wedge of brie in the center of each puff pastry square. Drizzle honey over the brie, then sprinkle the chopped pistachios on top.
6. Wrap Brie: Fold the corners of the pastry over the brie, pinching them together to seal completely.
7. Egg Wash: Beat the egg in a small bowl and brush the egg wash over the tops of the pastry bites for a golden finish.
8. Sprinkle Salt: Lightly sprinkle sea salt over each pastry for added flavor.
9. Bake: Place the assembled bites on a baking sheet lined with parchment paper. Bake in the preheated oven for 12-15 minutes, or until golden brown and puffed.
10. Cool: Once baked, remove from the oven and allow to cool for a few minutes before serving.

These simple steps will guide you in creating these incredible Pistachio-Crusted Brie Bites effortlessly.