125²µ/4½´Ç³ú caster sugar
200g/7oz caster sugar
pinch cream of tartar
125²µ/4½´Ç³ú self-raising flour, sifted
50²µ/1¾´Ç³ú dark chocolate, in drops or broken into pieces
200g/7oz dark chocolate, in drops or chopped into pieces
125²µ/4½´Ç³ú butter, softened, plus extra for greasing
200ml/7fl oz double cream
2 free-range eggs, beaten
3 free-range egg whites
1–2 tbsp rum or brandy (optional)
1 litre/1¾ pints vanilla, coffee or chocolate ice cream