Directions:
To make the crust place whole Oreo cookies with the filling in a food processor and ground in fine crumbs. Stir in melted butter and press the mixture in the bottom of 13 x 9 inches casserole dish. Place in the fridge or freezer to firm while making next layer.
To make Hot Chocolate Cheesecake Mousse Layer, beat softened butter and cream cheese with vanilla and powdered sugar until creamy and smooth.
In another bowl beat heavy whipping cream and instant milk chocolate powder until stiff peaks form. Fold half of hot chocolate whipped cream in cheesecake mixture, then fold in another half, scraping the bottom of the bowl to incorporate everything well. Then, spread over the crust and set in the fridge or freezer to firm.