Whisk gelatine with 2 tablespoons cold water in a microwave safe container. Stand for 5 minutes.
Process mango, sugar and lemon juice in a food processor until smooth. Transfer to a bowl.
Microwave gelatine on high for 35 seconds to dissolve, then stir into mango mixture. Refrigerate for 30 minutes or until mixture starts to set.
Cheesecake Base
Line a large loaf tin with baking paper.
Process cookies in a food processor until fine crumbs. Add butter and process to combine.
Press mixture into base of loaf tin. Refrigerate until ready.
Cheesecake
Whisk gelatine with tablespoons cold water in a small microwave bowl. Stand for 5 minutes.
Microwave on high for 35 seconds, stir and put aside to cool.
Process cream cheese and sugar in a food processor until smooth. Gradually add cream and gelatine and process until thickened.
Transfer half the mixture to the loaf tin over the biscuit base and smooth the top.
Carefully spoon mango jelly over the cream cheese mixture. Place in refrigerator for 20 minutes.
Top carefully with remaining cream cheese mixture and smooth top. Refrigerate overnight
Passionfruit sauce
Place all ingredients in a small saucepan. Bring to the boil and simmer for 5 minutes. If not serving straight away put in sterilised glass jar and seal until required.
To serve top the cheesecake with slices of mango and drizzle with passionfruit sauce. Alternatively you can serve the sauce separately in a jug so that guests can serve themselves.