And if you're looking for some more, here's a list of 26 one mug and a microwave recipes from Brit + Co. They're not all sweet (chicken pot pie, roasted tomato soup with grilled cheddar), but they all look delicious. I'm not sure I dare try the peanut butter swirl brownie. Peanut butter and chocolate is a weakness of mine.
Oh, what the heck? Let's add one more. These are beautiful mug cakes. Make sure to click through to YouTube. The links (and printed directions) are beneath the video on the YouTube site.
Have a great day!