2 bananas, peeled and thinly sliced
1 tbsp golden syrup
2 tsp bicarbonate of soda
125²µ/4½´Ç³ú soft dark brown sugar
250g/9oz chopped dates
demerara sugar, for dusting
175g/6oz demerara sugar
150g/5½oz plain flour, plus extra for dusting
pinch salt
1 tbsp black treacle
1 vanilla pod, split in half and the seeds scraped out
125²µ/4½´Ç³ú butter, softened, plus extra for greasing
170²µ/5¾´Ç³ú butter
500ml/18fl oz double cream
3 free-range eggs
150ml/5fl oz dark rum