1 tsp caster sugar
1 tbsp caster sugar
75g/2Β½oz plain white flour
1 tsp icing sugar
ΒΌ tsp vanilla extract
75g/2Β½oz plain, dark chocolate, broken into pieces
100²µ/3Β½΄Η³ϊ white chocolate, broken into pieces
50²µ/1ΒΎ΄Η³ϊ butter, cut into cubes
350ml/12fl oz double cream
250ml/9fl oz double cream
2 medium free-range eggs, beaten