Cut the dates open lengthwise – do not cut through! – pit them and fold them apart. Mix the marzipan mass with candied orange peel and Cointreau and form into two equal-sized rolls.
Cut each roll into 25 equal-sized pieces and place them – shaped oblong – in place of the stone in the dates. Close the dates and let them dry until the next day. Toast the coconut flakes.
Melt the chocolate in a water bath and dip the dates in it. When the chocolate begins to set, sprinkle with the coconut flakes.