2 ripe bananas
1 x 397g can condensed milk
150g/5陆oz light muscovado or soft brown sugar
100g/3陆oz bar milk chocolate, grated
pinch sea salt flakes
200g/7oz digestive biscuits
75g/3oz unsalted butter
150g/5陆oz unsalted butter
150ml/录 pt double or whipping cream