50ml/2fl oz blackcurrant liqueur
50g/2oz black cherry jam
1 tsp instant coffee powder (or 1 tsp coffee granules dissolved in 1 tsp hot water)
400g/14oz black cherries in syrup, drained
175g/6oz caster sugar
50g/2oz caster sugar
75驳/2陆 cocoa powder
25g/1oz icing sugar
125g/4oz self-raising flour
1 vanilla pod, seeds scraped out
50g/2oz dark chocolate (at least 70 per cent cocoa solids), grated
175g/6oz unsalted butter, plus extra for greasing
6 free-range eggs, separated
400ml/14fl oz whipping cream