01 -
Preheat the oven to 350°F. Lightly spray a 9-inch springform pan with non-stick baker’s spray. Wrap the outside of the pan with a double-layer of aluminum foil to prevent water from entering. Set aside.
02 -
Use a food processor to pulse the OREO cookies into fine crumbs. Slowly drizzle in melted butter while processing until the mixture resembles wet sand.
03 -
Press the cookie mixture evenly into the bottom of the prepared pan. Bake for 15 minutes, then allow to cool while preparing the filling.
04 -
Reduce the oven temperature to 325°F. Beat cream cheese and sugar on medium-low speed in a stand mixer until smooth (2-3 minutes). Add eggs one at a time, mixing well after each addition. Incorporate sour cream. Slowly mix in Baileys, ensuring a smooth batter.
05 -
Pour the cheesecake batter into the prepared pan, smoothing the top. Place the pan into a large roasting pan and add boiling water to create a water bath, filling 1-1 ½ inches up the sides. Bake for 1 hour and 10-15 minutes until the edges are golden and the center jiggles only slightly.
06 -
Turn off the oven, crack the door open slightly, and allow the cheesecake to rest for 1 hour. Afterwards, cool at room temperature for another hour before refrigerating for at least 8 hours or overnight.
07 -
Heat the chocolate and heavy cream in a microwave-safe bowl for 1 minute. Stir until smooth. Mix in Baileys and corn syrup (if using). Cool slightly for 2-3 minutes.
08 -
Remove the chilled cheesecake from the fridge and release the outer ring. Transfer the cheesecake to a serving plate. Spread the ganache evenly on top and allow to set at room temperature for about 1 hour.
09 -
Optional: Garnish individual slices with whipped cream and chocolate shavings before serving.