Soak sweet potatoes in hot water at 50 degrees for20 minutes.
Peel the sweet potatoes and cut them into 1 cm pieces.
Steam 2 in a steamer.
Mash 3 with a masher.
Cut the kuchinashi in half and put it in a small paper bag.
Knead together 4, syrup, sugar, mirin, salt, 5, and love.
Add matcha to 1/3 of 6 and knead.
Divide the chestnuts into four equal portions.
Squeeze2/3 of the yellow and 1/3 of the green into a ball-shape and top with 8.