Roll out the cookie into a disc of about 3.5 inches.
Divide the filing into 9 portions.
Bury the filing into the bread dough, seal and then wrap the bread into the cookie disc. Do not seal the cookie dough.
Holding the exposed end of the bread dough, deep the buns into fine sugar.
Cut the surface of the bun to resemble pineapple skin.
Leave to proof for another 40 minutes, at 40°C.