Separately, biscuits and ice-cream are good things. But use the former to bookend the latter, and something magical happens. Take your “bread” of choice: warm peanut-butter cookies, perhaps, or a couple of meringues or wattleseed biscuits (as per our recipe for passionfruit-white chocolate semifreddo sandwiches), and place a complementary ice-cream in the middle. The possibilities are endless. Here are a few ice-cream sandwich ideas to get you started.