125驳/4陆辞锄 evaporated milk
300驳/10陆辞锄 soft light brown sugar
300驳/10陆辞锄 milk chocolate, chopped
vegetable oil, for greasing
75g/3oz dark chocolate (at least 60% cocoa solids), chopped
225g/8oz marshmallows
70驳/2陆辞锄 butter