Konnyaku is made from yams. “Nimono” means boiled and seasoned in Japanese.
If you can not find konnyaku, try daikon by itself, or other vegetables (potato, carrot etc), or tofu.
1 lb daikon (1/2 inch slices then cut them lengthwise)
1 pack of konnyaku (1/2 lb) (cut in 1/2 inch triangles)
2 tbsp soy sauce
1.5 tbsp sake
1.5 tbsp mirin
1 tbsp sugar
Boil konnyaku for 3 minutes, strain, and set aside.
Put 1 1/2 cups water and daikon in a sauce pan and bring to a boil.
When the water boils, add spices (soy sauce, sake, mirin, suger) and konnyaku, cover with lid, then boil for 25 minutes over medium heat.
??Please keep the eye on the pan—if heat is too high, the water will evaporate quickly and the food will burn.