1 lg. pkg. Oreo cookies
1/3 c. butter, melted
1/2 gal. vanilla ice cream
1 jar hot fudge topping
1 (9 oz.) Cool Whip

Crush cookies. Reserve 3/4 cup for topping. Combine remaining cookies with butter. Spread into greased 9 x 13 inch pan. Slice ice cream over cookies. Layer fudge then Cool Whip. Sprinkle with remaining reserved crumbs. Freeze.