Preheat and prep: Heat your oven to 400°F (200°C). Line a baking sheet with parchment and lightly spray it.
Keep it cold: Puff pastry puffs best when it’s cold.
If it feels soft, pop it in the fridge for 5–10 minutes.
Roll and cut: Lightly flour your surface and roll the pastry to smooth creases. Cut into 16 equal squares (about 2 to 2.5 inches each).
Prep the brie: Slice the brie into small cubes that fit comfortably in the center of each pastry square. Leave the rind on; it helps the cheese hold shape as it melts.
Add filling: Place a cube of brie on each square. Top with about 1/2 teaspoon fig jam.
Add a pinch of nuts or thyme if using.
Fold and seal: Bring all four corners up to meet in the center and pinch to seal, or fold into triangles and press edges with a fork. Seal tightly to prevent leaks.
Chill briefly: Transfer the assembled bites to the fridge for 10–15 minutes. This helps them keep their shape in the oven.
Egg wash: Whisk the egg with water or milk. Brush lightly over the tops for a glossy, golden finish.
Sprinkle with a tiny bit of flaky salt.
Bake: Bake 14–18 minutes, until puffed and deep golden. Rotate the pan halfway for even browning.
Rest and serve: Let them cool 5 minutes so the cheese settles. Finish with honey or extra thyme if you like.
Serve warm.