As you know, Kagamibiraki is one of the New Year's special traditional events in Japan. We take down the round mirror-shaped rice cakes used in New Year's displays, divide up, and then cook in a dish of sweet adzuki bean soup and eat it on January 11.
I also do Kagamibiraki every year.
This is the sweet adzuki bean soup (zenzai) I made today. I love it!