Ingredients

Instructions

  1. Preheat oven to 350°.
  2. In a small bowl, combine flour and baking soda.
  3. In a large bowl, beat together brown sugar, peanut butter, butter and granulated sugar until creamy. Beat in egg and vanilla. Gradually beat in flour mixture.
  4. Stir in chocolate chunks.
  5. Press into ungreased 13 x 9" baking pan.
  6. Bake at 350° for 18-22 minutes or until center is set. Cool completely in pan on wire rack before cutting into bars.