Marshmallow Brownies

1 cup butterscotch chips

1/2 cup butter or margarine

2 eggs

2/3 cup packed brown sugar

1 teaspoon vanilla extract

1 1/2 cups all-purpose flour

2 teaspoons baking powder

1/2 teaspoon salt

2 cups miniature marshmallows

2 cups semisweet chocolate chips

1/2 cup chopped walnuts

In a saucepan over low heat, melt butterscotch chips and butter; cool for 10 minutes. In a mixing bowl, beat eggs, brown sugar and vanilla. Add butterscotch mixture; mix well. Combine flour, baking powder and salt; add to batter and mix well. Stir in marshmallows, chocolate chips and nuts. Spread into a greased 13-in.x9-in.x2-in. baking pan. Bake at 325 degrees for 25-30 minutes or until brownies test done with a toothpick. Cool before