Caramel and macadamia cheesecake (Brett McGregor)

Name: Caramel and macadamia cheesecake (Brett McGregor)
Prep time: 30 min
Cook time: 7 h 10 min
Total time: 7 h 10 min
Yield: 8 portions
Ingredients: 160 g digestive biscuits; 100 g unsalted butter; 500 g cream cheese; 50 g sour cream; 370 g caster sugar; 1 tsp natural vanilla extract; 4 eggs; 150 g macadamia nuts; 100 g pouring (whipping) cream; icing sugar