Preheat the oven to 375°F (190°C) and line a baking sheet with parchment paper.
Roll the puff pastry sheet onto a lightly floured surface and cut it into 9 equal squares.
In a mixing bowl, beat the cream cheese, sugar, and vanilla extract until smooth and creamy.
Place a spoonful of the cream cheese mixture into the center of each pastry square.
Add a small spoon of raspberry jam on top of the cream cheese filling.
Fold the corners of each pastry slightly toward the center to create a small pocket, leaving the filling visible.
Brush the pastry edges with the beaten egg to help them turn golden while baking.
Bake for 18–20 minutes until the pastries are puffed and golden brown.
Allow the Raspberry Cream Cheese Bites to cool for several minutes before transferring them to a rack.
Top each bite with a fresh raspberry before serving.