Ingredients

1 cup butter or margarine, softened
1 cup sugar
1 egg
2 cups all-purpose flour
1 teaspoon ground cinnamon
1 cup chopped pecans or walnuts

Directions

Preheat oven to 275F. In large bowl with an electric mixer, beat butter and sugar until creamy. Separate egg, then beat yolk into butter mixture; cover and reserve the egg white. In another bowl, stir together flour and cinnamon; add to butter mixture. With your hands, spread dough evenly over bottom of a greased 10 by 15-inch rimmed baking pan. Beat egg white lightly, then brush over dough to cover evenly. Sprinkle pecans over top; press in lightly. Bake for 1 hour or until firm when lightly touched. While still hot, cut into 1/2-inch squares. Let cool in pan on a rack. Store airtight.