Prepare all the ingredients
Place the cookies in a zip lock bag. Crush the cookies then place it in a bowl
Add baking powder and milk. Mix it well.
Puree for a finer consistency. See the texture if it is already good enough
Grease the baking pan with wax paper liner
Pour into baking pan. Heat oven to 325℉ and bake it for 15 mins. or so. Make sure to not overcook
Let it cool then flip the cake upside down. Top it with chocolate spread
Serve and enjoy your delicious meal!