Crush the digestive biscuits into fine crumbs and mix with the melted butter.
Press the mixture firmly into a 20–23cm springform tin and chill for 20 minutes.
Beat the cream cheese and icing sugar until smooth and creamy.
Add the vanilla extract, mango purée, and lemon juice, mixing until fully combined.
Whip the double cream until soft peaks form, then gently fold it into the mango mixture.
Spoon the filling onto the chilled biscuit base and smooth the top.
Refrigerate for at least 6 hours or overnight until completely set.
Decorate with fresh mango slices, diced mango, and mint leaves before serving.