Creating your Passionfruit Curd Ripple Cheesecake is easy as long as you follow these clear steps:

1. Preheat Oven: Preheat your oven to 325°F (160°C). Grease a 9-inch springform pan.
2. Prepare Crust: In a bowl, combine the graham cracker crumbs and melted butter. Mix until the crumbs are well-coated. Press the mixture firmly into the bottom of the prepared pan to form the crust.
3. Make Cheesecake Filling: In a large mixing bowl, beat the softened cream cheese until smooth. Gradually add the sugar and beat until well combined. Mix in the vanilla extract.
4. Add Eggs: Add the eggs one at a time, mixing well after each addition. Finally, incorporate the sour cream and mix until the filling is smooth and creamy.
5. Bake Cheesecake: Pour the cheesecake batter over the crust in the springform pan. Bake for 50-60 minutes, or until the center is set but still slightly jiggly.
6. Cool Cheesecake: Remove the cheesecake from the oven and allow it to cool in the pan on a wire rack for about an hour. Once cooled, refrigerate for at least 4 hours, preferably overnight.
7. Prepare Passionfruit Curd: In a saucepan, whisk together the passionfruit pulp, sugar, and cornstarch. Cook over medium heat until the mixture starts to thicken.
8. Incorporate Egg Yolks: In a separate bowl, whisk the egg yolks. Gradually add a small amount of the hot passionfruit mixture to the yolks, whisking quickly to temper them. Then, add the yolk mixture back into the saucepan with the remaining passionfruit mixture.
9. Finish Curd: Stir in the butter and lemon juice. Continue cooking for a few more minutes until thick. Let the curd cool before swirling it into the cheesecake.
10. Add Passionfruit Curd: Once the cheesecake has set, spread or swirl the cooled passionfruit curd over the top, creating a ripple effect.
11. Serve: Carefully slice and serve, making sure to include the beautiful ripples of passionfruit curd in every piece.