Ice Cream Cake
["1 1/4 c. crushed vanilla wafers", "2 eggs, separated", "2 (1 oz.) sq. unsweetened chocolate", "2/3 c. butter", "2 c. confectioners sugar", "1 tsp. vanilla", "1 c. chopped pecans", "1/2 gal. vanilla ice cream"]
["Sprinkle vanilla wafer crumbs evenly in bottom of a 9 x 13-inch dish.", "Set aside."]
["vanilla wafers", "eggs", "unsweetened chocolate", "butter", "confectioners sugar", "vanilla", "pecans", "vanilla ice cream"]