Cook mung bean porridge in cold water. Ingredients that need to be prepared in advance are: 50 grams of mung beans, 100 grams of rice, and 200 ml of water.

1. Put 50g of mung beans and 100g of rice in a bowl, then add water until the rice is covered.

2. Wash and soak for 2 hours.

3. Prepare 200ml of water in the pot and pour in rice and mung beans.

4. Turn from high heat to low heat and simmer for 30 minutes.

5. Open the lid and cook until it boils.

6. Skim off the foam, remove from the pot and serve in bowls.