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1
Form cooled sushi rice into 4 cylindrical kiritanpo sticks (8 cm long × 3 cm diameter) by packing rice tightly onto moistened wood skewers or dowels; set aside.
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2
Bring broth to simmer in a large donabe or heavy-bottomed pot over medium heat; season with soy sauce, mirin, and salt.
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3
Add chicken pieces and burdock root; simmer 10 minutes until chicken is cooked through and root vegetables soften.
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4
Add carrots and mushrooms; simmer 5 minutes until vegetables are tender-crisp.
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5
Nestle kiritanpo sticks into broth, pressing gently so they absorb liquid; simmer 3–4 minutes until rice softens and sticks hold together.
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6
Scatter mitsuba or scallion greens over pot; adjust seasoning as needed.
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7
Serve directly from pot, ensuring each diner receives one kiritanpo stick with broth and vegetables.