Mississippi Mud Cake

Directions

1. 1
   Mix first 5 ingredients, then add nuts and vanilla.
2. 2
   Bake in 9 x 13-inch pan, greased and floured (or sprayed with Pam cooking spray).
3. 3
   Bake at 300° for 35 minutes.
4. 4
   Cake should look like isn't finished baking.
5. 5
   Remove from oven and spread marshmallows (as desired) over top of cake.
6. 6
   Put back in oven.
7. 7
   Bake at 350° until marshmallows soften and puff up.
8. 8
   Remove from oven and let cool for 1 hour, then spread on icing.