In the bowl of a stand mixer with a paddle attachment or an electric mixer, add the cream cheese (530 gs), sugar (75 gs), tang powder (200 g), and orange zest (2 tbsp), and mix on med-high speed it until everything is well combined. You want to ensure that the tang powder is properly incorporated in the cream cheese. Rub the mix between your gingers and beat until you don’t feel any grains and the mixture is completely smooth.
Add orange juice (1 tbsp), sour cream (45 gs), and vanilla essence (1/2 tsp) and mix for 2-3 minutes on med-high speed until everything is well combined. Make sure your mixture is completely smooth and has no lumps.
In a separate bowl, add the heavy whipping cream (250 ml) and whisk until it reaches stiff peaks*.
Add the whipped cream into the cream cheese mix and gently fold it in with a silicone spatula. Make sure you’re taking your time and folding the cream in gently, you don’t want to knock any air off the batter. The whipped cream is what helps give the cheesecake a firm structure, so if you mix it too vigorously, you will end up with a loose cheesecake layer that will not set properly.
Once it’s all mixed together, transfer the cheesecake layer to the biscuit base and let it chill overnight in the freezer.