1 (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"x9"x2". Heat 1/2 cup of the chocolate chips and the butter in heavy 1 quart saucepan over low heat. Stirring occasionally, 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 into 2" squares.