Preheat oven to 400℉. Line a baking sheet with parchment paper.
Gently roll out puff pastry to 10-12” square. Place the brie wheel in the center of the pastry sheet, spread with jam on top of the brie, top with walnuts.
Make a cut at each corner of the puff pastry, towards the center down to about ½” from the brie, so there are now 4 triangular pieces. Bring each of the corners up and over the brie, like a pinwheel, and secure together, brushing the seams with egg wash.. Place the brie in the fridge for 20 minutes.
Brush brie all over with the egg wash and bake for 25-30 minutes until golden brown. Remove from the oven and let it stand for 5 minutes. Serve with fruits, nuts, crackers and bread.
