Prep the oven and tray. Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
Stir the sauce. In a small bowl, mix 2 parts honey to 1 part Dijon. Season with a pinch of pepper and a few thyme leaves.
Roll and cut. Lightly flour your surface.
Gently roll the puff pastry to smooth seams and slightly thin it. Use a star-shaped cookie cutter (about 2.5–3 inches) to cut out stars. Gather scraps, re-roll once, and cut more.
Egg wash base. Whisk the egg with a splash of water.
Brush the tops of the stars lightly to encourage browning.
Layer the filling. Add a small dab of the honey mustard to the center of each star. Top with a bit of turkey and a cube of Brie. Don’t overfill—leave a small border so the pastry can puff.
Optional garnish. Sprinkle with thyme leaves and a tiny pinch of sea salt.
Bake. Transfer to the baking sheet and bake 12–15 minutes, until puffed and deep golden around the edges.
Finish and serve. Drizzle with a little extra honey (or hot honey) and a few crushed pecans if you like.
Serve warm.