Can't be done, these are factory cookies, a fine grained paste (have you ever eaten Rich Teas or Maries?) cooked light golden around squashed currants, possibly with a syrup. Aka dry fly biscuits, about an eighth of an inch thick, and sold in a row of about ten rectangular cookies which have to be snapped apart. Don't sound good, but they are.

The nearest I could do would be school Dry Fly Pie (not it's real name), a short crust pastry case and lid with a filling of currants, coconut, and golden syrup.

Penny