Ingredients: soybean150g, water1.2l, lactone 3g.

1. Clean soybeans.

2. Add 500 grams of water and soak for one night.

3. Soak until each watercress is very full.

4. Pour into the kitchen and add1300g of water.

5. Crush soybeans at high speed.

6. Filter the broken bean dregs with a strainer.

7. Melt the internal fat with a little cold water.

8. Turn off the fire after boiling, skim off the foam on it with a spoon, and then add the melted internal fat solution and stir well.

9. Pour it into a bowl and let it stand for ten minutes before serving.

10, finished product.