½ lemon, juice only
½ orange, finely grated zest only
15²µ/½´Ç³ú plain flour
75²µ/2½´Ç³ú caster sugar, plus extra for dusting
100²µ/3½´Ç³ú caster sugar
10²µ/â…“o³ú cocoa powder
15²µ/½´Ç³ú cornflour
150²µ/5½´Ç³ú dark chocolate, broken into pieces
25g/1oz butter, melted, for greasing
100ml/3½fl oz double cream
3 large free-range eggs, separated
150ml/5fl oz milk
2 tbsp orange liqueur
300ml/10fl oz orange juice