A quick and easy recipe for a marshmallow stuffed brownie mug cake, featuring melted chocolate and butter, cake flour, baking powder, and marshmallows, baked until gooey.
Place chocolate chips and butter over a boiler to melt. Then add in the rest of the ingredients, except marshmallow. Bake the brownie at 350F for 20 minutes. Put on the marshmallow and bake it for another 3 minutes.
