1, materials: 3 potatoes, carrots 1 root, steamed pork rice noodles 150g, bean paste 1 spoon, fermented milk 1 spoon, appropriate amount of onion, appropriate amount of ginger, appropriate amount of salt and olive oil 1 spoon.

2. Peel potatoes and carrots, cut into pieces, and then wash the starch with water to prevent discoloration.

3. Drain the potatoes, add watercress, ginger, onion, fermented milk, olive oil and salt, and marinate for 20 minutes.

4. Add steamed pork rice noodles and mix well.

5. Put the potatoes mixed with steamed pork rice noodles into a plate and steam in a steamer for 30 minutes.