Rocky Road Brownies

Okay so I don't think they really have a name, but I promise they are yummy!
1 devils food cake mix
1/2 c. (1 stick) butter, melted
2/3 c. cold milk, divided
3/4 c. creamy peanut butter
1 jar (7 oz.) marshmallow creme
1/2 c. salted peanuts
6 squared baker's semi-sweet chocolate, coarsly chopped
Heat oven to 350. Mix dry cake mix, butter, and 1/3 c. milk until blended; press 2/3 onto bottom of 13x9 inch pan. Bake 12-14 mins. or until center is almost set; cool 3 mins.
Mix peanut butter and remaining milk; spread onto crust. Top with spoonfulls of marshmallow creme and remaining cake mixture. Sprinkle with nuts and chocolate; press gently into cake mixture. Bake 18 mins. or until center is set. Sool before cutting bars.
Recipe from {Steph}