Chocolate Walnut Squares

Directions

• In a bowl, cream butter and sugar. Beat in eggs and vanilla. Add flour and salt; mix well. Fold in walnuts. Spread half of batter into a greased 13-in. x 9-in. baking pan. Add chocolate to the remaining batter; mix well. Carefully spread over batter in pan.
• Bake at 350° for 30-35 minutes or until a toothpick comes out clean. Cool completely.
• For frosting, in a saucepan, combine flour and milk until smooth. Bring to a boil. Cook and stir for 1-2 minutes or until bubbly and thickened. Cool completely.
• In a bowl, cream butter and confectioners' sugar. Add vanilla and mix well. Gradually add the milk mixture; beat for 5 minutes. Frost cake. Store in the refrigerator.