Roll the dough into a rectangle 8 by 16 in/20 by 41 cm.
Spread the pastry cream over the dough, leaving a bare strip of dough 1 in/3 cm wide along one of the long sides. Sprinkle the cinnamon sugar onto the pastry cream. Sprinkle the pecans and currants evenly over the cream. Roll lightly over the top with a rolling pin to press the nuts and currants into the c