Here are the dry ingredients needed to make the cookies
Mix flour, cocoa, baking soda, salt and sugar together in a big bowl.
Then mix eggs, vanilla, butter and shortening in a different bowl
Then mix both dry and liquid ingredients together in one bowl
The dough will then look like this
Grease the pan well
This will be your frosting mix, it is made of 1 cup chocolate chips, 1/2 cup milk, 1/4 cup of margarine, and powdered sugar.
Continue adding powdered sugar until the frosting is thick enough
Now you're going to take small pieces of dough, roll them up, and space them evenly on your greased pan
Put in oven at 350 degrees for 8-10 minutes
This how your frosting should turn out
You want to add the marshmallows with one minute left remaining for cooking
Take out the cookies and put them on a cooling rack to let them cool down
Once your cookies are cooled down, you may add your frosting on top