Add all of the ★ ingredients to a bowl (no need to drain the yogurt, but melt the butter first), then mix with an egg beater until smooth.
Add half of the batter to a microwave safe container, and drop it several times to flatten.
Let the surface dry a bit and microwave for about 40 seconds to harden. It will swell right away, so keep a close eye on it!
Once the surface has dried a bit, spread out the amanatto (or boiled adzuki beans) evenly.
Add the matcha to the remaining half of the batter, and mix well.
Pour in the matcha over the amanatto batter, and microwave at 500W for 3~4 minutes.
Poke it with a toothpick. If it comes out clean, it's done.
Try out this tri-color steamed bread that's perfect for Girl's Day Recipe ID: 2118533.
Story Behind this Recipe
I came up with a tri-color steamed bread recipe (Recipe ID: 2118533), but I had been wondering if I could make something enticing even without food coloring, which can make it difficult to divide the colors evenly. So I figured 2 colors would also taste good and wondered if it could work.
When adding the amanatto and pouring in the matcha batter, disperse them evenly. If you just dump them in the middle and spread them out, they will mix into the bottom batter. This is made without sugar, but it's okay since the amanatto are sweet!