1 package brownie mix (13 x 9 inch pan sized)
3 cups mini marshmallows
2 cups chocolate chips
1 cup peanut butter
1 Tablespoon butter
1 1/2 cups crisp rice cereal
Prepare brownie mix according to the package directions. Pour into a greased 13 x 9 pan. Bake at 350 degrees for 25-28 minutes. Top with marshmallows.
Return to the oven and bake for 3 more minutes.
Let the brownies cool.
In a microwave safe bowl, melt the butter, chocolate chips and peanut butter. Stiring after each minute, until mixture is smooth. Stir in the cereal and spread over the brownies.
Refrigerate for 1-2 hours until firm, before cutting.