4 bananas, peeled and halved lengthways
260²µ/9Β½΄Η³ϊ plain flour
1 tbsp baking powder
50²µ/1ΒΎ΄Η³ϊ caster sugar
50g/2oz caster sugar
1 tsp sea salt flakes
1 tbsp granulated sugar
175g/6ΒΌoz plain chocolate, broken into pieces
110g/4oz unsalted butter, melted
50g/2oz butter
3 free-range eggs, lightly beaten
425ml/15fl oz full-fat milk
4 scoops vanilla ice cream, to serve