I learned recently that these are auspicious treats for Mid-Autumn Festival in some parts, and so I found an excuse to try them homemade. They might be the best ones I’ve ever had (suck it, dim sum places!) and the use of sweet potato to make their casings probably has a lot to do with it (also made the red bean filling from scratch)! I tried to make them as spherical as possible to resemble the moon but maybe the only things moonlike about them are their texture and their colors: orange sweet potato for a golden moon and purple sweet potato for those once in a blue moons?