425g/15oz very ripe bananas, peeled (about 3 large or 4 small bananas)
1 banana, sliced in half
1录 tsp baking powder
1录 tsp bicarbonate of soda
250g/9oz dark brown sugar
2 tbsp light brown sugar
1 tbsp caster sugar
戮 tsp ground cinnamon
1 tsp cornflour
100驳/3陆辞锄 icing sugar, sifted
60驳/2录辞锄 raisins
1陆 tsp salt
280g/10oz white spelt flour
1陆 tsp vanilla extract
180ml/6fl oz vegetable oil, plus extra for greasing
dark chocolate, for grating
200g/7oz full-fat cream cheese
75ml/2陆fl oz (5 tbsp) double cream
3 free-range eggs
120ml/4fl oz natural yoghurt