Hershey`s Best Brownies2

1 cup (2 sticks) butter or margarine

2 cups sugar

2 tablespoons vanilla extract

4 eggs

3/4 cup Hershey`s� cocoa or Hershey`s European

Style Cocoa 1 cup all-purpose flour

1/2 tablespoon baking powder

1/4 tablespoon salt

1 cup chopped nuts (optional)

Heat oven to 350�F, Grease 13x9x2-inch baking pan. In large microwave-safe bowl, place butter. Microwave at HIGH (100%) 2-2 1/2 minutes or until melted. Stir in sugar and vanilla; add eggs, one at a time, beating until well blended. Add flour, bakin g