Quick& easy fudgey brownies

4       oz           Hershey's Baking chocolate
                        -(Unsweetened)
                        -broken into pieces
     3/4   c            butter or margarine
   2       c            Sugar
   3                    Eggs
   1 1/2   ts           vanilla extract
   1       c            All-purpose flour
   1       c            Chopped nuts (optional)
                        -----OPTIONAL-----
                        FrostiNG (recipe follows)
   3       oz           Hershey's Baking chocolate
                        -(Unsweetened)
                        -broken into pieces
   1       c            Miniature marshmallows
     1/2   c            butter or margarine
                        - softened
     1/3   c            Milk
   2 1/2   c            Powdered sugar
     1/2   ts           vanilla extract

  Heat oven to 350 degrees Fahrenheit. Grease
  13x9x2-inch baking pan. In large microwave-safe bowl,
  place chocolate and butter. Microwave at HIGH (100%)
  1-1/2 to 2 minutes or until chocolate is melted and
  mixture is smooth when stirred. Add sugar; stir with
  spoon until well blended. Add eggs and vanilla; mix
  well. Add flour and nuts, if desired; stir until well
  blended. Spread into prepared pan. Bake 30 to 35
  minutes or until wooden pick inserted in center comes
  out almost clean. Cool completely in pan on wire rack.
  Frost with QUICK & EASY chocolate FrostiNG, if
  desired. Cut into squares. About 24 brownies. Quick &
  Easy chocolate Frosting
  
  In medium saucepan over low heat, melt chocolate,
  stirring constantly. Add marshmallows; stir frequently
  until melted. (Mixture will be very thick and will
  pull away from sides of pan). Spoon mixture into small
  mixer bowl; beat in butter. Gradually add milk,
  beating until smooth. Add powdered sugar and vanilla;
  beat to desired consistency. About 2-1/4 cups frosting.
  
  Hershey's is a registered trademark of Hershey Foods
  Corporation. Recipe may be reprinted courtesy of the
  Hershey Kitchens.