Then I remembered Jen's matcha mochi cupcakes which fit the bill exactly! The ingredients, except for the matcha, are basically the same as my recipe for mochi cake, but the proportions are a little different. There's less liquid, which I think worked better for the cupcake form. Compared to the mochi cake, the cupcakes have a lot more surface area to get all nice and crusty while still retaining a ridiculously moist and chewy interior. I do prefer a little less sugar than called for in this recipe, but everyone at the event loved the cupcakes, so that's just a very personal preference.
Matcha Mochi Cupcakes (from Tiny Urban Kitchen)
makes about 26 cupcakes or 56 mini-cupcakes
1 lb. glutinous rice flour
2 tablespoons matcha powder
1/3 cup vegetable oil
2 cups milk
2 cups sugar
3 eggs, beaten
Combine all ingredients and mix until well combined.
Brush the inside of each muffin "well" generously with vegetable oil.
Fill the muffin tins almost to the top. The cupcakes will rise in the oven but shrink a lot as they cool.
Bake at 350°F for around 30-35 minutes. Please note that ovens may vary and you should start checking before the actual listed time is up. Test by inserting a toothpick or sharp metal object (e.g., a knife) into a muffin. If it comes out cleanly, it is done.
The muffins are easier to remove if you let them cool first. However, if you've oiled the pan well enough, they should just slide out.