1      cup           butter or margarine -- softened
                  1      cup           sugar
                  1                    egg -- separated
                  1      teaspoon      vanilla extract
                  2      cups          flour
                  1      cup           chopped nuts
                                       colored sugar

               In large mixing bowl, combine butter, sugar, egg yolk, vanilla
               extract, flour, and 1/2 cup nuts; blend well.  Spread in ungreased
               15"x10" jelly roll pan.  Beat egg white until frothy;  spread over
               bars. Sprinkle with 1/2 cup nuts and colored sugar. Bake at 350 F
               for 25 to 30 minutes until golden brown.  Cool slightly; cut into
               bars.