Thaw your puff pastry and press to flatten slightly.

Use a pizza cutter to create 9 squares.

Fill the middle of four of the squares with 2 tbsp Nutella and 1 tbsp chocolate chunks (do the same with the last square but with less filling and fold it in half).

Top with another piece of puff pastry and crump with a fork to seal.

Brush with a milk or egg wash and sprinkle on some turbinado sugar if desired.

Bake at 375°F for 15-20 minutes or until golden brown.

Let cool for at least 10 minutes before serving.