4 sq. Baker's unsweetened chocolate
3/4 c. (1 1/2 sticks) butter
2 c. sugar
3 eggs
1 tsp. vanilla
1 c. all-purpose flour
2 c. coarsely chopped nuts (optional)
2 c. miniature marshmallows
1 c. Baker's semi-sweet real chocolate chips

Stir chocolate and butter consistently in heavy saucepan over very low heat until just melted. Remove from heat. Stir in sugar. Mix in eggs and vanilla. Stir in flour and 1 cup nuts. Spread in greased 13 x 9 inch pan. Bake at 350 degrees for 35 minutes. Immediately sprinkle marshmallows, chops and remaining nuts over brownies. Bake 3 minutes or until topping begins to melt together. Cool and cut into squares.