Take out the butter at least a half hour before making the recipe.Preheat the oven to 350 F. 1/2 cup butter
In a stand mixer, add butter and sugar, mix until incorporated.
1/2 cup brown sugar, 1/2 cup white sugar
Add the egg and vanilla and mix until combined.
1 egg, 1 1/2 teaspoon vanilla
Add flour, cocoa powder, baking soda, and salt and mix until just mixed
2 cups flour, 1/4 cup cocoa powder, 1 teaspoon baking soda, 1/2 teaspoon salt
Add chocolate chips and stir them in.
1/2 cup chocolate chips
Take a big dough ball and roll it into to a flat ball, make a divet into it and place the a marshmallow in the hole. Bring the edges of the dough around the marshmallows, completely covering it.
18 stackable marshmallows
Bring up the dough around the marshmallow, completely covering it
Put rolled up balls on cookie sheets- I place 9 on each sheet, giving it space to spread.
Bake for 13 - 15 minutes or until done. The edges should be just set.
Let sit on cookie sheet for 5 minutes before removing from sheet and placing on a wire rack.
Eat, smile, and enjoy.