Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      package       brownie mix -- (9.8 oz)
   1      cup           chopped pecans
   3      cups          mini marshmallows
   2      squares       -- (1 oz each)
                        -- unsweetened
                        -- chocolate
     1/3  cup           milk
     1/2  cup           butter
   1      package       powdered sugar -- (16 oz)
     1/2  teaspoon      vanilla

Preparation:

Prepare brownie mix according to package directions. Stir in pecans. Spoon batter into a greased 13x9x2 inch baking pan. Bake at 350 degrees, 25 minutes. Remove from oven and sprinkle mini marshmallows over the brownies. Combine chocolate, 1/2 cup mix and butter in heavy pan. Stir over low heat until chocolate and butter melts. Stir often. Remove from pan. Transfer to medium mixing bowl. Add powdered sugar and vanilla. Beat with an electric mixer at low speed. If too thick, add a little mix. Spread over brownies. Cool and cut into bars.