Gooey Chocolate Mug Cake

I added mini marshmallows to this also. Perfect single serving dessert when you're craving some chocolate. This was perfect after a late night at work when I came home hungry, but didn't want to spend an hour baking something for dessert. Here's the link to the recipe
http://www.babble.com/best-recipes/3-ingredients-60-seconds-gooey-chocolate-mug-cake/