1 cup (2 sticks) butter or margarine
1 cup brown sugar, firmly packed
1 egg, separated
Dash of salt
1 3/4 cups all-purpose flour
3 teaspoons cinnamon
1/2 cup unsifted confectioners' sugar
1/2 to 1 cup chopped walnuts

Preheat oven to 350 degrees F. Lightly grease a 15 x 10-inch baking pan.

Combine butter, brown sugar, egg yolk and salt. Beat until creamy. Stir in flour and cinnamon. Mix well. Spread thick batter into prepared pan.

Beat egg white until foamy. Stir in confectioners' sugar. Brush mixture over batter. Sprinkle with walnuts. Bake for 30 to 35 minutes.

While hot, cut into 48 bars. Remove from pan and cool on rack.