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These Halloween Cheesecake Bars swirl rich black cocoa through creamy vanilla cheesecake on a buttery Oreo crust. The striking black and white marble comes straight from the cocoa, no food dye needed. Make them a day ahead for an easy, elegant Halloween dessert.
Course Dessert
Cuisine American
Keyword black cocoa cheesecake bars, easy halloween dessert, halloween cheesecake bars, halloween desserts for adults, strawberry cheesecake bars
Preheat the oven to 350° Fahrenheit. Line a 9x9 pan with parchment paper, leaving an overhang on two sides.
Pulse the Oreos in a food processor into fine crumbs.
Stir the crumbs and melted butter together until the mixture holds when pinched.
Press evenly into the pan. Bake for 10 minutes, then set aside. Reduce the oven to 300° Fahrenheit.
Make the Filling
Beat the cream cheese and sugar on low speed until smooth.
Add the sour cream, flour, lemon juice, vanilla, and salt. Beat on low until combined.
Beat in the eggs one at a time on low speed.
Swirl and Bake
Transfer half the batter to a medium bowl. Sift in the black cocoa and stir until smooth.
Alternate spoonfuls of the vanilla and cocoa batters over the crust. Swirl lightly with a toothpick.
Bake for 45 minutes, until the edges are set and the center jiggles slightly.
Cool and Chill
Turn off the oven and prop the door open with a wooden spoon. Leave the bars inside for 30 minutes.
Cool to room temperature, then refrigerate for at least 4 hours or overnight.
Lift the slab out, slice into 16 bars, and serve chilled.
Notes
Chill Time
Plan on about 5½ hours from oven to serving: 30 minutes in the turned-off oven, about 1 hour to room temperature, then at least 4 hours in the refrigerator. Overnight is even better. Chill time is not included in the total time.
Cocoa Swap - Dutch-process cocoa works in the same amount. The swirl bakes up deep brown instead of black.