Make the Biscuit Base
Preheat your oven to 160°C (320°F). Crush the digestive biscuits into fine crumbs using a food processor. Mix with melted butter until combined. Press the mixture firmly into the base of a 9-inch springform pan. Bake for 10 minutes, then let it cool.
Prepare the Strawberry Swirl
In a saucepan over medium heat, combine the strawberries, sugar, and lemon juice. Stir occasionally until the mixture thickens and the strawberries break down. Remove from heat and allow to cool.
Prepare the Cheesecake Filling
In a large bowl, beat the softened cream cheese and sugar until smooth and creamy. Add the eggs one at a time, mixing after each addition. Stir in the vanilla extract, sour cream, and flour until fully incorporated.
Assemble the Cheesecake
Pour half the cheesecake filling over the cooled biscuit base. Drizzle half of the strawberry sauce on top and swirl gently with a skewer or toothpick. Repeat with the remaining cheesecake filling and strawberry sauce, creating a beautiful marbled effect.
Bake the Cheesecake
Bake for 50-60 minutes or until the edges are set and the center has a slight jiggle. Turn off the oven, crack the door open, and let the cheesecake cool inside for an hour.
Chill & Serve
Refrigerate for at least 4 hours (preferably overnight) to allow the cheesecake to fully set. Slice and serve with fresh strawberries or a dollop of whipped cream!