Preheat the oven to 180°C (350°F) and line a 20x20cm (8×8 inch) baking tin with baking paper.
Place the biscuits in a food processor, along with the butter and blitz until a crumble forms. Transfer the crumb into the baking tin and press it firmly into the bottom. Bake for 10 minutes, then remove from the oven and set aside to cool.
In a clean food processor, blend together the cream cheese, yoghurt, and honey. Add the egg white, vanilla and lemon juice. Blend until smooth and creamy.
Add the fresh blueberries to a blender cup and blitz until pureed.
Pour the cheesecake mixture into the pan, and spread evenly over the biscuit base. Pour the blueberry puree on top and marble through, using a skewer.
Bake in the oven for 25-30 minutes. Once cooked, remove from the oven and allow to cool on a wire rack.
Place the cheesecake into the fridge and chill for 3–4 hours or overnight before serving.
Notes
Oats or almond meal can substitute for the biscuits in the base.Topping ideas: try a spoonful of blueberry compote or a sprinkle of crushed nuts.