1. Wash the dried lotus seeds, soak them in clear water, and put them in a casserole to soften them with water.
2. After the water boils, turn to low heat and cook for about 20 minutes. Don't boil the lotus seeds.
3. Wash the cooked lotus seeds with cold water, and then drain.
4. Put the drained lotus seeds into a large bowl, sprinkle with a handful of corn starch and shake vigorously to ensure that each lotus seed can be evenly glued with starch.
5. Heat the oil in the pot to 80% heat, stir-fry the lotus seeds with low fire, and put the fried lotus seeds in a bowl for later use.
6. Add rock sugar to the pot until the sugar juice is thick, and shake the pot continuously during the cooking process to prevent the pot from sticking.
7. Put the fried lotus seeds into the sugar juice and quickly stick a thin layer of sugar juice and take it out.
8. Pour it into powdered sugar and coat it with powdered sugar to dry.