Heat oven to 350F. Mix sugar, margarine and egg yolk. Stir in flour and cinnamon. Press in lightly greased jelly roll pan, 15 1/2x10 1/2x1". (Or use 2 square pans, one 8x8x2" and one 9x9x2".) Beat egg white and water until foamy; brush over dough. Sprinkle with walnuts. Bake 20 to 25 min or until very light brown. Immediately cut into 2 1/2 to 3" squares. Cut diagonally into halves.
About 40 cookies.
*>* this comes from the bottom of the files of Shelley Rodgers <=-