1. Soak the peeled mung beans overnight, changing the water several times during the period.
2. Wash the mung beans and steam them in a steamer for 50-60 minutes.
3. After steaming, use a food processor to add a little water to make a paste.
4. Pour butter in a non-stick pan, then pour in the mung bean paste after it has melted, and stir fry so that the mung bean paste completely absorbs the oil.
5. The whole process is medium and small fire, constantly stir fry.
6. Stir mung bean paste until it forms a dough, pour in sugar and stir-fry evenly.
7. After frying, let it cool, and put the mung bean paste into balls of the same size and put them in a mold to press.
8. Finished product.
