This pistachio baklava cheesecake blends two beloved desserts into one stunning treat. Creamy, nutty, and finished with honey, it's an impressive showstopper worth every minute.
Preheat your oven to 325°F (160°C). Lightly grease a 9-inch springform pan. Lay one sheet of phyllo dough in the pan, brush with melted butter, and sprinkle with a bit of the ground pistachios. Repeat with all 8 sheets, rotating each slightly so the edges hang over the sides unevenly, creating a rustic look.Press the phyllo into the bottom and up the sides. Fold the overhanging edges inward to form a rim. Bake the crust for 8 to 10 minutes until lightly golden. Set aside and reduce the oven to 300°F (150°C).
Beat the cream cheese and granulated sugar with an electric mixer on medium speed until smooth and creamy, about 3 minutes. Scrape down the sides of the bowl frequently to avoid lumps.
Add the eggs one at a time, mixing on low speed after each until just incorporated. Add the sour cream, pistachio paste, vanilla extract, and flour. Mix on low until everything is evenly combined. Do not overmix.
Pour the filling into the cooled phyllo crust. Tap the pan gently on the counter to release air bubbles. Bake at 300°F for 55 to 65 minutes until the edges are set and the center has a slight jiggle when you gently shake the pan.
Turn off the oven and crack the door open slightly. Let the cheesecake cool inside the oven for 1 hour. This gradual cooling helps prevent cracks.
While the cheesecake cools, make the honey syrup by heating the honey, water, and lemon juice in a small saucepan over medium heat. Stir until combined and simmer for 2 minutes. Let cool.
Remove the cheesecake from the oven, drizzle the honey syrup over the top, and scatter with chopped pistachios. Refrigerate for at least 4 hours, or overnight, before removing the springform ring and serving.