Preheat oven to 400°F (200°C).

Cut the Brie cheese horizontally in half.

Sprinkle the bottom half of the Brie with crumbled blue cheese.

Replace the top half of the Brie.

On a lightly floured surface, roll the puff pastry into a 14-inch square.

Trim the corners of the pastry to make a circle.

Spoon apricot jam onto the center of the pastry circle.

Sprinkle the toasted slivered almonds over the jam.

Place the assembled Brie cheese on top of the jam and almonds.

Lightly brush the edges of the pastry with beaten egg.

Fold the pastry over the cheese, pinching the edges to seal.

Trim any excess pastry as desired.

Transfer the pastry to an ungreased baking sheet, seam side down.

Brush the entire pastry with beaten egg.

Bake in the preheated oven for 20-25 minutes, or until golden brown.

Immediately remove from the baking sheet to a serving plate.

Let the Brie puff pastry stand for 5 minutes before serving.

Serve warm with assorted crackers.