115g/4oz plain flour
125驳/4陆辞锄 caster sugar
20驳/戮辞锄 cocoa powder
pinch salt
1 tsp vanilla extract
60g/2oz amaretti biscuits
400ml/14fl oz double cream
4 free-range eggs, separated
250g/9oz mascarpone
1 tbsp instant espresso coffee powder
4 tbsp coffee liqueur
4 tbsp vodka