18 chocolate wafers (Oreos), crushed
1/3 c. butter, melted
6 oz. semi-sweet chocolate chips
1/2 c. cream
1/2 tsp. vanilla
1/2 pt. chocolate ice cream, slightly softened
1 - 1 1/2 qts. vanilla ice cream

Combine crumbs and butter; pat into buttered 9" pie pan. Freeze while preparing filling. Melt chocolate chips in cream over low heat; stir occasionally. When melted and thoroughly blended, remove from heat. Add vanilla and chill until thickened. Spoon chocolate ice cream into pie crust and smooth with back of spoon. Refreeze 30 to 40 minutes. Spread 3/4 of sauce over ice cream. Freeze until quite firm. Place large scoops of vanilla ice cream over sauce. Drizzle remaining sauce over top of pie. Freeze.

Remove from freezer 15 minutes before serving.