1 (22 oz) package fudge brownie mix
1 (10 1/4 oz) package of miniature marshmallows
1 1/2 C semisweet chocolate chips
1/2 C creamy peanut butter
1 T butter
1 1/2 C crisp rice cereal
Preheat oven to 350. Grease a 13 x 9 in baking pan. Prepare brownies according to brownie mix directions. Spoon into prepared baking pan. Bake until brownies test done, about 25 minutes. Place marshmallows evenly on top of the brownies. Bake until the marshmallows are golden, about 5 minutes. Transfer baking pan to a wire rack to cool. Combing chocolate chips, peanut butter, and butter in a medium saucepan. Cook over low heat, stirring frequently, until the chocolate chips melt. Remove chocolate chip mixture from heat. Stir in cereal. Spoon over brownies. Chill until set, about 45 minutes. Cut into bars. Serve immediately or at room temperature.