For the hmmmberry roll, first preheat the oven to 200 °C and grease the baking dish. Unroll the puff pastry and roll out thinly. Carefully wash the raspberries and pat dry.
Cut the puff pastry lengthwise into 4 strips. Top each strip with a row of raspberries, leaving just the bottom half of the strip free. Sprinkle 1 tsp sugar over each of the raspberries. Then fold the bottom half of each dough over the raspberries.
Roll up the first filled dough strip into a snail and place in the center of the baking dish. Place the next strip at the end. Do the same with the rest, making a large roll.
Sprinkle dough roll with remaining sugar and bake in hot oven (center) for about 20 minutes until golden brown.
Meanwhile, melt the chocolate coating. Let the baked hmmmberry roll cool slightly and decorate with the chocolate coating.