Simple to make, this biscuit-based dessert is a South African classic Serves: 8; make individual servings or one large tartTime: 30 minutes, plus setting time of at least 4 hoursIngredients:1 packet of tennis biscuits, crushed75g butter, melted1 leaf of gelatine200ml milk150g green and white marshmallows400ml Ideal Milk, chilled2 drops peppermint essence2 x 49g Peppermint Crisp chocolate barsMethod:1) Line a spring-form tin with clingfilm and lightly grease it.