Over medium low heat in a small saucepan, melt the heavy cream and chocolate for the ganache. Once all of the chocolate is almost melted, remove from the heat and continue stirring until completely smooth. Set aside.
Line a standard muffin pan with 12 cupcake liners. Place one oreo in the bottom of each liner.
Spoon about 1 Tablespoon of the ganache in each liner. Set aside to cool.
Using a stand mixer fitted with a whisk attachment or an electric hand mixer on medium high, whip the cream until stiff peaks form. Set aside.
In a separate bowl, using a stand mixer fitted with a paddle attachment or an electric hand mixer on medium, beat the cream cheese, granulated sugar, confectioners’ sugar, and vanilla until completely smooth. There should not be any lumps.
Add the crushed Oreos to the cream cheese mixture and mix on low until just combined.
Add the whipped cream and mix on low or fold until just combined so the cream does not deflate.
Using a large cookie or ice cream scoop. Fill each liner to the top with the cheesecake filling.
Using an offset spatula or butter knife press and smooth the top of the filing.
Chill for 6-8 hours or overnight.
Right before serving, using a stand mixer fitted with a whisk attachment or an electric hand mixer on medium high, whip the remaining cream, confectioners’ sugar, and vanilla until stiff peaks form.
Top each cheesecake with a spoonful of whipped cream and more crushed oreos. Serve chilled. The cheesecakes will melt and start to stick to the liners after about 30 minutes at room temperature.