For the filling:
- 70g dark chocolate (buttons or small pieces)
- 50ml double cream
- 20ml Drambuie
- 50g mincemeat
For the fondant:
- 300g butter, unsalted
- 300g white chocolate (buttons or small pieces)
- 10g baking powder
- 5g mixed spice
- 3g ground cinnamon
- 260g flour
- 5 eggs, separated
- 90g caster sugar
- 200g currants and sultanas, soaked in hot water