3 very ripe bananas, peeled and roughly chopped
110²µ/3ΒΎ΄Η³ϊ caster sugar (or soft light or dark brown sugar)
pinch nutmeg (or cinnamon or 1 tbsp finely chopped stem ginger)
pinch salt
225g/8oz self-raising flour (or use 225g/8oz plain flour and 1 tbsp baking powder)
100²µ/3Β½΄Η³ϊ chocolate, broken into small pieces (optional)
85g/3oz unsalted butter, melted, plus extra for greasing
2 free-range eggs, beaten
1 tbsp instant coffee, dissolved in small amount boiling water, or 1 espresso shot