Steps
1. Heat vegetable oil in a small pot over medium heat.
2. Add burdock root slices and sauté for 2 minutes until fragrant.
3. Pour in dashi stock and bring to a gentle simmer.
4. Add daikon, carrot, shiitake mushrooms, and tofu cubes to the pot.
5. Stir in soy sauce, mirin, and sugar.
6. Cover and simmer gently for 15 minutes until vegetables are tender but hold their shape.
7. Adjust seasoning to taste.
8. Serve warm, garnished with sliced spring onions.