Citrus cheesecake slice

Ingredients

• 250 gram chocolate ripple un-iced biscuits
• 125 gram butter, melted
• 1 1/2 tablespoon powdered gelatine
• 500 gram cream cheese, at room temperature
• 1/2 cup cream
• 1/2 cup caster sugar
• 1 tablespoon finely grated orange zest
• 2 tablespoon freshly squeezed orange juice
• 310 gram can mandarine segments in syrup, drained
• 9 gram sachet orange and mango jelly crystals