BASE: 1 Box Chalet Cremes, finely Crushed (approx 2-1/2 cups) 1/4 c Margarine/butter, melted FILLING 1/2 ga Vanilla ice cream, softened 20 oz Can, blueberry pie filling Reserve 1/4 cup crushed cookies for topping. In large bowl combine remaining crushed cookies and margarine; mix well. Press lightly in bottom of 13 x 9-inch pan. Refrigerate 10-15 minutes. Spread half of the ice cream in prepared pan. Spoon pie filling over ice cream layer. Top pie filling with remaining ice cream; sprinkle with reserved crumbs. Cover; freeze at least 2 hours or until firm. If frozen overnight, let stand at room temperature 10-15 minutes before serving.