Speedy Little Devils

Directions

1. 1
   Combine melted butter and dry cake mix.
2. 2
   Reserve 1 1/2 cups of this for top crust.
3. 3
   Pat the rest into ungreased 13 x 9 x 2-inch pan.
4. 4
   Top with combined peanut butter and marshmallow cream and spread evenly.
5. 5
   Crumble remaining mixture over that.
6. 6
   Bake 20 minutes at 350°.