01 -
Mix the sake, sugar, soy sauce, ginger, garlic, and mirin in a small pot. Heat until bubbling, then turn it down and let it simmer for about 10 minutes to thicken a bit. Cool it down afterward.
02 -
Take your wet bamboo sticks and slide the chicken chunks onto them, spreading them out evenly.
03 -
Heat up the grill or a grill pan on medium-high. Lightly coat the grates with oil so nothing sticks.
04 -
Cook the chicken skewers on the grill for 3-4 minutes each side. During the last few minutes, generously brush on the sauce for a sweet, shiny coating.
05 -
Keep turning the skewers, adding more sauce until the chicken is cooked all the way and has a shiny caramelized glaze.
06 -
Plate them hot, and sprinkle chopped spring onions on top if you'd like.