4 bananas, peeled, chopped and frozen
65g/2¼oz smooth peanut butter
35²µ/1¼´Ç³ú plain flour
100²µ/3½´Ç³ú caster sugar
75g/2¾oz toasted peanuts, chopped
45g/1¾oz good-quality dark chocolate, minimum 65% cocoa solids
40²µ/1½´Ç³ú butter
100²µ/3½´Ç³ú crème fraîche
2 medium free-range eggs