Cake in a mug with 4 ingredients? Now that's too good to be true. Mix Nutella, flour, baking powder, and milk in a mug. Bake at 350 degrees for 16-18 minutes for a yummy cake outside and a gooey center.
You're going to want to have this Coffee Cake In A Mug recipe tucked into your back pocket for the next time you get a sugar craving. It can be mixed up and cooked in just 2 minutes! We make it all the time.