Prepare the Crust: In a bowl, mix crushed chocolate cookies with melted butter until well combined. Press the mixture firmly into the bottom of a 9x13-inch baking dish. Chill in the refrigerator for about 10 minutes.
Make the Cream Cheese Mixture: In a large mixing bowl, beat the softened cream cheese with an electric mixer until smooth. Gradually add powdered sugar, mixing until well combined.
Add Chocolate: Stir in the melted chocolate and vanilla extract until everything is combined and creamy.
Whip the Cream: In another bowl, whip the heavy cream until stiff peaks form. Gently fold this whipped cream into the chocolate mixture until well incorporated.
Assemble: Pour the chocolate cheesecake filling over the chilled crust, spreading it evenly. Place it in the refrigerator and chill for at least 4 hours or until firm.
Serve and Enjoy: Once set, cut into bars and top with your favorite toppings like whipped cream, chocolate shavings, or a drizzle of chocolate sauce. Enjoy!