200g/7oz plain flour, plus extra for dusting
1 tbsp plain flour
50²µ/1¾´Ç³ú caster sugar
200g/7oz caster sugar
icing sugar, to decorate
pinch of salt
230g/8oz walnuts, plus extra to decorate
65²µ/2¼´Ç³ú amaretti biscuits, roughly crushed
75g/2½oz dark chocolate, grated
100²µ/3½´Ç³ú butter, chilled, cut into small pieces
50²µ/1¾´Ç³ú butter, melted
3 free-range eggs
2 free-range egg yolks
mascarpone, to serve
1 tbsp instant coffee powder, dissolved in a little hot water
50ml/2fl oz almond liqueur