Using a food processor, add sweet biscuits to create 1 cup of biscuit crumbs.
Grease & line with baking paper a 20cm (8inch) round sprinform baking pan.
In a large bowl add biscuit crumbs, coconut & melted butter. Mix to fully combine.
Pour biscuit crumbs into base of baking pan and press and spread evenly over base. Place in refrigerator to chill.
Add 300ml thickenend cream to a bowl and using an electric mixer beat until soft peaks form. Set aside.
Add egg whites to a small bowl and beat until soft peaks form. set aside.
Add white chocolate to a bowl placed over a saucepan of boiling water.
Stir until white chocolate is fully melted and smooth. Remove from heat and allow to cool a little.
Meanwhile, in a separate large bowl add cream cheese & sugar and using an electric mixer, beat until fully combined and smooth.
In a small jug, add gelatine to boiling water and stir to fully dissolve the gelatine.
Add white chocolate, lime zest & gelatine to cream cheese mixture and beat gently to combine.
Add passionfruit pulp and gently mix through.
Add whipped cream and gently fold through.
Add 1/3 of the Egg White and gently fold through. Add remaining 2/3 and fold through.
Pour mixture over biscuit crumb base in the baking pan.
Place in refrigerator and allow to set for at least 3 hours (longer if possible).
Once cake has set, add 1/4 cup passionfruit pulp with caster sugar to a small saucepan over low heat. Stir until sugar has dissolved then simmer for about 5 minutes to allow glaze to thicken a little. Stir regularly. Remove from heat and cool.
Add 300ml thickened cream and 2 tbsp caster sugar to a bowl and beat until stiff peaks form.
Add cream to a piping bag and pipe over top of cheesecake.
Drizzle passionfruit glaze over top of whipped cream. Return to refrigerator to chill, then serve when ready.