
Indulge in this ultra-creamy, New York-style blueberry cheesecake featuring a buttery biscuit crust and a vibrant, zesty homemade blueberry sauce. Perfectly balanced and surprisingly simple to make, this show-stopping dessert is the ultimate treat for any special occasion.
Preheat your oven to 160°C (320°F) or 140°C for fan-forced ovens. Position the oven rack in the middle for even heat distribution.
Prepare a 20cm (8") springform pan. Turn the base upside down (this makes it easier to slide the cake off later), lightly butter it, and press a square of parchment paper over it. Clip the base into the pan so the excess paper sticks out.
Butter the inner sides of the springform pan and line them with a strip of parchment paper.
To make the crust, place the biscuits in a food processor and pulse until they become fine crumbs. Add the melted butter and pulse again until the mixture resembles wet sand.
Pour the crumbs into the prepared tin. Use a spatula to spread them out, then use the bottom of a flat measuring cup to press the crumbs firmly into the base and nearly all the way up the sides.
In a stand mixer fitted with a paddle attachment or using a handheld beater, beat the cream cheese on medium speed for about 20 seconds until just smooth. Do not over-beat, as excess air can cause the cheesecake to crack.
Add the flour and beat for another 5 seconds until just incorporated.
Add the vanilla extract, sour cream, caster sugar, and lemon zest. Beat on medium speed for a maximum of 10 seconds until the mixture is combined.
Add the eggs one at a time, beating for 5 seconds between each addition. Stop the mixer as soon as the batter is smooth.
Gently fold the fresh blueberries into the batter using a rubber spatula. Pour the filling into the prepared crust.
Bake for 70 minutes. The cheesecake is done when the top is slightly puffed and light golden, and it should still have a slight jiggle in the center when gently shaken.
Cool the cake in the oven with the door slightly ajar (about 20cm) for 2 hours. This gradual cooling prevents cracking. Afterward, refrigerate in the pan for at least 4 hours, or preferably overnight.
To release, remove the sides of the springform pan. Use the parchment paper overhang to slide the cheesecake off the base and onto a serving plate.
Prepare the blueberry sauce by combining 1 cup (125g) of blueberries, vanilla, white sugar, and lemon juice in a small saucepan. Simmer over medium heat for about 7 minutes until the berries begin to break down.
Mix the cornflour with ice-cold water to create a slurry, then stir it into the simmering sauce. It will thicken quickly into a syrupy consistency.
Stir in the remaining blueberries and remove from the heat. Let the sauce cool completely; it will continue to thicken as it cools. If it becomes too thick, stir in a teaspoon of water at a time.
Spoon the cooled sauce over the cheesecake, chill for another 2 hours to set the topping, then slice and serve.
For the best results, ensure your cream cheese, eggs, and sour cream are at room temperature before mixing to avoid a lumpy batter. When slicing, dip your knife in hot water and wipe it dry between each cut for perfectly clean edges. If you don't have a food processor, you can crush the biscuits by placing them in a sealed bag and hitting them with a rolling pin.





