1. These are ingredients.
2. Put crushed jagarico, milk, sugar and butter in a microwave-safe bowl. Cover the bowl with a plastic wrap. Warm it with a microwave oven for one minute.
3. Mash "2". When it cools down, put egg and cinnamon powder in it, and mix them. Divide it into quarters, and make them into balls.
4. Put egg yolk and sprinkle black sesame on "3" surface. Bake them until the surface becomes the light brown.