How to make West Lake beef soup?

The practice of West Lake beef soup is:

Ingredients: tofu100g, beef 200g, mushroom 200g, starch10g, 2 parsley, 3g pepper, onion10g, and 6g ginger.

1, cut tofu into small pieces and soak in cold water.

2. Cut the mushrooms into small pieces for use.

3, onion ginger cut into sections for use.

4. Onion and ginger are fragrant.

5. Add water, tofu, mushrooms and beef.

6. Bring to a boil, add the prepared starch, pour it evenly and cook for five minutes.