In a small bowl, mix together Oreo cookie crumbs and melted butter until all crumbs are coated. Press the mixture evenly into the bottom and up the sides of a deep 9-inch pie pan. Set aside.
In the bowl of a stand mixer fitted with the whisk attachment, blend cream cheese and granulated sugar until smooth. Add peanut butter, vanilla extract, and sour cream. Blend until creamy, scraping down the sides of the bowl as needed.
In a separate bowl, prepare the whipped cream by beating the cold heavy cream until thick and stiff peaks form. Gradually add confectioners' sugar while mixing. Gently fold the whipped cream into the cream cheese mixture.
Pour the cheesecake filling into the prepared Oreo crust, spreading it into an even layer. Chill in the refrigerator for at least 4 hours or overnight.
In a microwave-safe bowl, heat the heavy cream for 45 seconds to a minute, until hot. Add chocolate chips to the hot cream and let sit for 5 minutes. Then whisk until smooth and shiny. Pour the ganache over the chilled cheesecake filling in a circular motion, leaving the center of the cheesecake exposed.
Sprinkle chopped peanuts over the chocolate ganache. Cut and serve the cheesecake, revealing the peanut butter filling at the center, resembling a traditional buckeye dessert. Enjoy!