Turn the dough out onto a lightly floured surface. Roll out the dough to a 40 x 60 cm/16 x 23-inch rectangle. Using a spatula, spread the chocolate mixture evenly over the rolled-out dough. Fold the dough from the bottom 2/3 inwards lengthways and again from the top down. Using a knife or pizza cutter, cut widthways strips of 2-2.5cm. Take one strip and carefully twist it a few times, then curl into a ‘knot’, ensuring both ends are tucked in or under so they do not spring open during baking, you can watch this tutorial
for making the buns.