1 lg. pkg. Oreos, crushed
1 stick butter, melted
1/2 gallon vanilla ice cream, softened
1 can chocolate syrup
1 lg. container Cool Whip

Combine Oreos and butter. Reserve 1/2 cup of mixture. Press in greased 13 x 9 pan. Spread ice cream over crust. Drizzle with chocolate syrup. Spread Cool Whip over top, sprinkle with reserved crumbs. Garnish with nuts. Freeze at least 2 hours before serving.