2 sheets ready-rolled puff pastry
Preparation time: 15 minutes
Preheat oven to hot. Lightly grease two oven trays.
Cut pastry sheets diagonally to make four triangles each. Spread hazelnut spread over traingles, leaving a 1cm border; sprinkle each evenly with grated chocolate.
Roll triangles starting at wide end; place 3cm apart on prepared trays with the tips tucked under and the end slightly curved in to form crescent shape. Brush croissants with melted butter.
Bake, uncovered, in hot oven about 12 minutes or until croissants are browned lightly and cooked through. Dust croissants with icing sugar; serve warm or at room temperature.