This is a recipe passed to me by my sister...So easy and incredible good! 1 box brownie mix 1 1/3 c. semi-sweet chocolate chips 1 c. creamy peanut butter 3 Tbsp. butter 3 c. crispy rice cereal a batch of butter cream Icing Bake brownies according to package directions in a greased 9×13″ baking pan.cool and top with Butter cream icing, Meanwhile, in a saucepan, combine chocolate chips, peanut butter,and butter. Heat & stir until chocolate is melted (or melt all in microwave, 100% power, for 1-2 minutes, stirring occasionally, until fully melted).Stir in cereal. Pour evenly over Butter cream icing.Cut into bars using greased knife to make cutting easier Butter cream Icing 2/3 cup (150 mL) butter, softened 3 1/3 cups (825 mL) sifted icing sugar 3-4 table spoon milk 1/4 tsp (1 mL) vanilla Preparation: In large bowl, beat butter until light and fluffy. Alternately beat in sugar and milk, making 2 additions of sugar. Beat in vanilla.