1) Cut the tofu into small pieces. Season the dace paste with salt, ground white pepper and chopped spring onion. Wash the lettuce and cut into pieces. Peel and slice the ginger.
2) Heat water to boil. Add the ginger slices and fish paste ball. Cover with lid and cook for 5 minutes.
3) Add the tofu and cook for 3 minutes. Add lettuce and cook till soft. Season with ground white pepper and salt. Ready to serve.