BUILDING THE DUMPINGS : take the prepared chilled pastry circles from the fridge and remove the top sheet of baking paper , now place one apple on each of the individual pastry circles and fill the centers of the apples , packed tight , with the brown sugar . now gather pastry up and around the apples covering it all over and use a little milk to join pastry ends together to seal it tight . now roll prepared dumpings lightly into a bowl with a little milk in it , shake excess milk off then roll into a bowl with caster sugar in it to cover all the outside of the dumpings , place back into refrigerator for about 10 minutes to set and chill before cooking .