Spray springform pan with non-stick cooking spray.
Prepare the chocolate brownie mix of choice according to package directions and pour into a sprayed 9x 3 inch or larger springform pan, bake according to package directions and let cool completely.
Make hot fudge sauce (beloand chop sandwich cookies into small-ish chunks and place in a bowl.
When hot fudge sauce is done, pour half the hot fudge sauce over the sandwich cookies in the bowl, and stir to coat.
Let hot fudge sauce and cookie mixture cool slightly, then spread over the top of the brownie in the springform pan.
Put in freezer for 15-30 minutes to let chill.
Meanwhile, take Breyers 2in1 Oreo Chips Ahoy! Frozen Dairy Dessert out of the freezer for 5 -10 minutes to let it soften.
Once the cookie and fudge mixture is cooled, spread Breyers 2in1 Oreo Chips Ahoy! Frozen Dairy Dessert over the top, filling the springform pan.
Place in the freezer for 20 minutes until ice cream layer is firm.
Take remaining hot fudge sauce, and pour over the top of the ice cream to make your final layer.
Place the whole ice cream cake in the freezer overnight, or until solid.
About 20 minutes before you want to serve, remove cake from freezer.
Run a butter knife under hot water, and run it along the edge of the springform pan to loosen the ice cream and brownie from the edges.
Open springform pan and remove outer ring.
Slice and serve!
Optional: Decorate top with additional sandwich cookies and whipped cream.