Cream Group 1 until soft and smooth. Add Group 2 and mix to smooth batter. Melt Group 3 and add. Finally add Group 4 and mix until smooth. Spread half the mixture on a standard baking tray. Spread on Sultanas. Add Group 5 to remaining half of batter and cover sheet. Oven temperature 175¡C (350¡F). When cold ice with chocolate icing and cut into units. 50mm x 50mm (2" x 2").
The metric recipe is of similar size to the avoirdupois recipe but is not an exact conversion.