100g/3陆oz hard banana chips
1 large slightly ripe banana, mashed until smooth
100g/3陆oz chewy banana chips, cut up with scissors
gold leaf-covered hard and chewy banana chips
1x 397g/14oz tin condensed milk
50驳/1戮辞锄 golden syrup
300驳/10陆辞锄 plain flour
100g/3陆oz golden caster sugar
150g/5陆oz golden caster sugar
1 tbsp sea salt flakes
1 tsp vanilla extract
250g/9oz dark chocolate
200g/7oz unsalted butter, softened, plus extra for greasing
150g/5陆oz unsalted butter