1 tsp lemon juice
235ml/8录fl oz golden syrup
125驳/4陆辞锄 plain flour
2 tbsp cocoa powder
2 tbsp icing sugar
235驳/8录辞锄 pecans, chopped
160g/5戮oz granulated sugar
1 tsp vanilla extract
80g/3oz dark chocolate, broken into pieces
135g/4戮oz cold unsalted butter, cut into roughly 1cm/陆in cubes
45g/1陆oz unsalted butter
vanilla ice cream or double cream, to serve
1 medium free-range egg
3 free-range eggs