① Take a green bamboo slip with knots at both ends, with a diameter of 10 cm and a length of 20 cm, and cut a mouth with a length of 10 cm horizontally at a distance of about 4 cm from one end of the bamboo tube as a bamboo tube cover for cleaning (or replace it with a small bowl).
(2) Slicing mandarin fish, washing, draining water, cutting into rectangular blocks with a length of 5cm, a width of 2.5cm and a thickness of 2cm, then washing with clear water, draining water, putting into a bowl, adding spiced cinnamon and cooked rice flour, and adding soy sauce, bean paste, sweet noodle paste, pepper powder, white sugar, white vinegar, cooking wine, monosodium glutamate and sesame oil.
(3) Put the mixed mandarin fish into a bamboo tube, cover it, steam it for 20 to 30 minutes on high fire, take it out of the steamer and put it into a long plate.