1. Ingredients: 100 grams of mung beans, 1 pig heart, 500 grams of winter melon, a piece of ginger, 2000 grams of water, and 3 grams of salt.

2. Boil the pig heart in cold water with ginger, remove and set aside.

3. Add water to the boiled pig heart and mung beans and bring to a boil.

4. Skim off the foam and keep the conversation clear.

5. Add winter melon and bring to a boil over high heat.

6. Turn to simmer and simmer for 60 minutes, then add salt to taste.