Follow these straightforward steps to create your own Chocolate Pistachio Croissants with Ricotta:

1. Preheat the Oven: Begin by preheating your oven to 400°F (200°C). Line a baking sheet with parchment paper.

2. Prepare the Filling: In a mixing bowl, combine ricotta cheese, chocolate chips, chopped pistachios, vanilla extract, sugar, and salt. Stir until everything is well mixed.

3. Roll Out Puff Pastry: On a lightly floured surface, roll out the puff pastry sheets. Cut each sheet into 4 squares.

4. Fill the Pastry: Place a generous spoonful of the filling in the center of each square. Be careful not to overfill.

5. Shape the Croissants: Fold the corners of each puff pastry square over the filling to create a triangle. Seal the edges by pressing them together, ensuring no filling escapes during baking.

6. Egg Wash: Brush the tops of the croissants with the beaten egg for a beautiful, shiny finish.

7. Bake: Place the croissants on the prepared baking sheet and bake for 20-25 minutes, or until golden brown. Let them cool for a few minutes before serving.