Sorry this isn't a very good picture...my swirls didn't turn out as pretty as my Mom's! These are SOOO good though; they taste like candy bars!
1 brownie mix, family size (for a 9x13 pan)
7 oz. marshmallow cream
1 c. chocolate frosting
*Prepare brownies as directed on package. While warm, spread marshmallow cream over the top. Drop teaspoonfuls of frosting evenly over the top of marshmallow and swirl with a knife. Serve chilled or at room temperature.