1. Preparation of mung bean flour and accessories (sugar, butter, milk)
2. Put mung bean flour (without water) into the steamer and steam for 25 minutes
3. Mung bean flour will agglomerate after being steamed, crush it into powder and pour the auxiliary ingredients
4. Stir with a spoon
5. After stirring evenly, divide them into equal parts, put them into the mold to press, and you're done
