6 oz. pkg. semi - sweet chocolate chips
2 tbsp. butter
2 c. Bisquick baking mix
1 c. sugar
1/2 tsp. vanilla
2 eggs
1 c. miniature marshmallows
1/4 c. chopped nuts

Heat oven to 350 degrees. Grease bottom of rectangular pan 13 x 9 x 2 inches. Heat 1/2 cup of the chocolate chips and the butter in heavy 1 quart sauce pan over low heat, stirring constantly until melted. Mix baking mix, sugar, vanilla and eggs. Stir in chocolate mixture. Spread in pan. Bake 15 minutes. Sprinkle with marshmallows, nuts and remaining chocolate chips. Bake 10 to 15 minutes or until marshmallows are light brown. Cool completely. Cut in 2 inch squares.