Get ready for a super simple, no-bake peanut butter cheesecake that tastes incredibly rich and satisfying, made with real, wholesome ingredients!
Step 1: Prepare Your Speedy OREO Crust.
Place the whole OREO cookies into a food processor and pulse until fine crumbs form. Alternatively, crush them in a large zip-top bag with a rolling pin.
Drizzle in the 8 tablespoons of melted salted butter and continue pulsing or mixing until the crumbs are evenly moistened.
Firmly press this crumb mixture into the bottom and about 1 inch up the sides of a 9-inch springform pan. Cover the pan with plastic wrap and chill it in the refrigerator while you make the filling.
Step 2: Create the Dreamy Peanut Butter Filling.
In a large mixing bowl, beat the very cold heavy whipping cream until stiff peaks form, which usually takes 2 to 3 minutes. Set this aside.
In a separate bowl, beat the softened full-fat cream cheese for 2 to 3 minutes on medium-high speed until it's light and fluffy, scraping down the sides of the bowl as needed.
Gradually beat in the 1 ½ cups of powdered sugar until the mixture is completely smooth and lump-free.
Add the 1 cup of creamy peanut butter, ¾ cup of room-temperature sour cream (or plain Greek yogurt for a lighter option), and 1 teaspoon of vanilla extract. Continue beating on medium speed until everything is perfectly smooth and well combined.
Gently fold the reserved whipped cream into the peanut butter mixture until it's fully incorporated and no streaks remain, ensuring a uniform and airy filling.
Carefully pour this luscious filling over your chilled OREO crust in the springform pan and spread it out evenly with an offset spatula.
Cover the pan with plastic wrap again and refrigerate for at least 4 hours, or until the cheesecake is firm and set.
Step 3: Make the Decadent Chocolate Ganache Topping.
Place your coarsely chopped semi-sweet chocolate chips in a heatproof bowl.
Heat the ⅓ cup of heavy whipping cream in a microwave-safe container in 30-second intervals until it just begins to simmer.
Pour the hot cream over the chocolate chips, making sure all the chocolate is submerged. Let it sit undisturbed for 2 to 3 minutes to melt the chocolate.
Gently whisk the mixture until the chocolate is completely melted and you have a smooth, glossy ganache.
Allow the ganache to cool for 5 to 10 minutes until it's slightly warm but still easily spreadable. It's crucial not to pour hot ganache onto your cheesecake, or it will melt!
Pour the cooled ganache over your firm, chilled cheesecake and spread it evenly with an offset spatula.
Refrigerate the cheesecake for another 30 minutes to allow the ganache to set beautifully.
Step 4: Slice and Savor!
For an extra special touch, you can garnish your cheesecake with chopped Reese's peanut butter cups, chopped peanuts, or a drizzle of warm peanut butter.
Run a thin knife along the inside edge of the springform pan before carefully releasing and removing the outer ring.
Slice into generous portions and enjoy this truly impressive, easy-to-make dessert!