Finely chop the dried apricots. Add the sugar and marmalade and mix well.
Knead the marzipan and powdered sugar between two layers of plastic wrap and roll into a 5mm thick rectangle (approximately 40x10 cm). Roll the apricot mixture into a thick roll the length of the rectangle. Roll the marzipan rectangle around the apricot mixture. Cut thick slices, dust with powdered sugar and serve.