Preheat the oven to 200c/ 180 fan assisted ovens/gas mark 6. Line a baking sheet with greaseproof paper.
Open the Pain au Chocolate can. Unroll the dough and cut along the perforations with a sharp knife to separate into the rectangular pieces.
Cut each rectangle into 2 lenghtways. Twist each piece around a chocolate stick and lay on the baking sheets. Press the ends down slightly, so they stick to the baking sheets - this will help them to keep their shape.
Brush with the egg and bake for 8-10 minutes until lightly golden. Serve with your favourite hot drink.