On a lightly floured surface, roll the dough into a rectangle about 22cm x 25cm. Spread with the cooled cranberry mix, leaving a 2cm border around the edge. Moisten the border with cold water or milk before rolling into a cylinder. Start by tucking over the border of one of the short ends, then lift as you roll (see step 1, click photo above) so the jam doesn’t get squeezed out. With the long join underneath, lay the roly-poly in the centre of the parchment paper. Fold over the long paper and foil edges to seal, leaving enough space above the pudding to allow it to rise. Squeeze the paper ends together tightly to seal them.