Cream of tartar Banquet wafers Boil sugar and water without stirring until syrup spins a thread. Pour very slowly over stiffly beaten egg whites and beat until smooth. Add little cream tarter, amount that will lie on end of knife blade. Allow to stand a few minutes, then spread on banquet wafers and sprinkle with ground nuts. Put in hot oven to brown. Note: Hot oven is 400 230ºC .