3-4 bananas, sliced
150g/5Β½oz whole almonds, toasted and roughly chopped
2 tbsp soft light brown sugar
6 amaretti biscuits, crumbled
6 shortbread biscuits, crumbled
50g/1ΒΎoz salted butter
250g/9oz crème fraîche
150ml/5fl oz almond liqueur, such as amaretto