• 100g (1/2 cup) caster sugar
• 125ml (1/2 cup) fresh lemon juice
• 4-5 passionfruit, pulp strained and seeds discarded (you need 1 ⁄3 cup passionfruit juice)
• 250g packet nice biscuits
• 140g butter, melted, cooled
• 500g cream cheese, at room temperature
• 155g (3/4 cup) caster sugar
• 300ml carton sour cream
• 500ml (2 cups) thickened cream
• Passionfruit pulp, to serve