Chicken: I used two thighs, bone and skin removed, and cut into small chunks (half inch).
Vegetables: I used ginger root (one thin sliver, skin removed and minced), gobo 牛蒡 or burdock root (1/2), and carrot (1 small). For gobo, after scraping off the dark skin of the gobo using the back of the knife under running water, I cut it into small, thin, "small bamboo leaf shape" which is called "sasagaki" 笹掻き cutting ("sasa" 笹 is a type of small bamboo). This is a very common way to cut root vegetables, especially gobo. You do this by shaving the end of burdock like you are sharpening a pencil (I am not sure how many of you actually shaved and sharpened a lead pencil encapsulated in wood cylinder, i.e. an old fashioned pencil, using a knife). Here is a visual aid for "sasagaki". I put the sasagaki cut burdock in acidulated water (with rice vinegar) immediately. I changed the water several times and let it drain (to reduce the pungent smell/taste and prevent discoloration). I also cut a carrot (one small) in the same way as the gobo. If you like, you could add, a deep fried tofu pouch (abura-age), shiitake mushroom, and/or lotus root (renkon 蓮根); all cut into small pieces.
Vegetables: I used ginger root (one thin sliver, skin removed and minced), gobo 牛蒡 or burdock root (1/2), and carrot (1 small). For gobo, after scraping off the dark skin of the gobo using the back of the knife under running water, I cut it into small, thin, "small bamboo leaf shape" which is called "sasagaki" 笹掻き cutting ("sasa" 笹 is a type of small bamboo). This is a very common way to cut root vegetables, especially gobo. You do this by shaving the end of burdock like you are sharpening a pencil (I am not sure how many of you actually shaved and sharpened a lead pencil encapsulated in wood cylinder, i.e. an old fashioned pencil, using a knife). Here is a visual aid for "sasagaki". I put the sasagaki cut burdock in acidulated water (with rice vinegar) immediately. I changed the water several times and let it drain (to reduce the pungent smell/taste and prevent discoloration). I also cut a carrot (one small) in the same way as the gobo. If you like, you could add, a deep fried tofu pouch (abura-age), shiitake mushroom, and/or lotus root (renkon 蓮根); all cut into small pieces.
Seasoning: I added vegetable oil (1 tbs) in a frying pan on medium heat and first cooked the chicken. When the surface of the chicken became opaque, I added the burdock and carrot and sauteed them for 1-2 minutes. I then added sake (3 tbs), mirin (2 tbs) and soy sauce (2 tbs) and cooked for 1 minute or so. Using a colander or strainer, I separated the solids from the liquid (preserving both separately).
Rice: You could use a just regular Japanese rice but I added sweet rice or glutenous rice. Japanese will call this rice "mochi-gome" 餅米* since rice cakes or mochi 餅 is made from this variety of rice. I used a mixture of regular rice (2 Japanese cups) and sweet rice (1 Japanese cup). This adds a stickier texture to the cooked rice but this is optional. I washed the rice under running cold water until the water ran clear. I then drained and let it sit in the strainer.
*(Digression alert) Mochi-gome contains mostly amylopectin as a type of starch, which gives it a stickier consistency than regular Japanese rice. It can be easily distinguished from a regular Japanese rice since the germ of mochi-gome is opaque. As a result, after washing, the rice grains look white and opaque rather than slightly transparent like regular rice. Some rice dishes, beside rice cake, can be made solely from mochi-gome, which are called "okowa" おこわ. Red rice or "sekihan" 赤飯 served on celebratory occasions in Japan is the example of "okowa".
Cooking: This time I used an electric rice cooker but I could have used a Donabe rice cooker. To set up the rice cooker, I added the washed and drained rice and then added the seasoning liquid reserved from cooking the chicken and other ingredients. I then brought the liquid level up to the 3 cup mark by adding dashi broth (or water). I added the chicken and vegetables and stirred it once or twice. I then cooked it like regular rice. After it finished cooking I let it steep for 10-15 minutes (see picture below). With a rice paddle, I stirred the rice and other items (in Japanese culinary parlance, these are called "gu" 具).
Serving: You usually want to add some greens to this dish. Cooked green beans cut into small segments, green pea, snow pea or snap pea can be added as a garnish. In my case, I added a chiffonade of perilla and nori.
This is a very nice and tasty dish. The addition of sweet rice gave it more body or a "mochi-mochi" もちもち texture, if I am allowed to use a Japanese expression. My wife thought she could not tell the difference from regular rice. This is a perfect "shime" 締め or ending dish or, by itself, with a salad or tsukemono 漬け物 and miso soup, this could be a whole meal.