What a wonderful idea, The Comfort of Cooking!
1 sheet puff pastry, dethawed
1 bar chocolate, broken into 8 pieces
1 teaspoon water
Powdered sugar, for dusting
Whisk together egg and water. Set aside. Preheat oven to 400 degrees. Roll out puff pastry then slice into 8 rectangles. Place a piece of chocolate onto the end of each rectangle. Fold over the puff pastry over the chocolate, then brush the egg wash over the remaining pastry. Finish rolling then place onto a baking pan, seam side down. Repeat until all chocolate and puff pastry is gone. Crimp edges with a fork, then brush with egg wash. Place in refrigerator for 10 minutes than bake in preheated oven for 10 minutes or until very slightly golden brown. Remove from oven and let set for 10 minutes before dusting with powdered sugar. Enjoy!