Recipe via Meal-Master

Oreo Ice Cream Pie

Oreo cookies, crushed to 1-1/2 to 2 cups (depends upon size of serving dish)
Up to a quart of vanilla ice cream, softened
16 oz. cool whip
Chocolate syrup

Crumble cookies in a large casserole. After ice cream has softened a
bit, spread over the oreo cookies. Spread Cool whip over the ice
cream. Drizzle chocolate syrup over cool ship. Place back in freezer
until firm.