Creating Chocolate Orange Dessert Croissants can be straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
2. Prepare Puff Pastry: Roll out the thawed puff pastry on a lightly floured surface. Cut the pastry into triangles (about 4-5 inches wide).
3. Mix Filling: In a small bowl, combine the chocolate chips, orange zest, and granulated sugar. Mix until well combined.
4. Fill Pastry: Place a spoonful of the chocolate-orange mixture at the wide end of each triangle of puff pastry.
5. Roll Croissants: Starting from the wide end, roll each triangle towards the tip to form a croissant shape. Tuck the ends slightly to create a crescent shape.
6. Prepare Egg Wash: In a separate bowl, whisk together the egg and milk. Brush the egg wash over each croissant to give them a golden color when baked.
7. Bake: Place the prepared croissants on the lined baking sheet. Bake in the preheated oven for 20-25 minutes or until they are puffed and golden brown.
8. Cool: Remove from the oven and allow the croissants to cool on the baking sheet for about 10 minutes.
9. Dust with Powdered Sugar: If desired, dust the croissants with powdered sugar before serving for an extra touch of sweetness.

These steps will guide you in creating these incredible Chocolate Orange Dessert Croissants effortlessly.