1 pkg. Oreo cookies (crushed)
1/2 c. butter (softened)

Mix together and reserve 1 cup. Press rest into 9x13 pan. Spread on 1/2 gallon vanilla ice cream or other flavor (softened) and freeze. Pour over frozen ice cream. Add a layer of nuts over all. Spread 1 jar hot fudge and 9 ounce of Cool Whip over all. Freeze overnight.