Pour the chocolate cake batter into your mug and sprinkle over the chocolate chips. Note, you can mix everything in the mug if you prefer to not have any extra dishes!
1 tablespoon chocolate chips
Cook in your microwave for 1-2 minutes, mine took about a minute and a half to cook on high but please note that microwaves vary on the wattage. Add your marshmallows on top once it's finished baking.
mini marshmallows
Let cool for about a few minutes then eat!
Notes
Storage: I don't recommend storing the mug cake, it is best eaten soon after cooking.Cooking Time: the cooking time depends on the wattage of your microwave, it can take 1-2 minutes. The higher the wattage, the faster it will cook.Mug Size: Don't use a mug that is too small or it will overflow! Ideally the batter should take up about half of the mug before cooking. Additions: Add sprinkles, whipped cream, or ice cream to your mug cake!