1. Peel off the skin.
2. Cut into strips, put in a large bowl and pour boiling water to soak until cold, wring out the water, pour the boiling water again, soak overnight, and change the cold water 3 times in the middle.
3. Wring out the water vigorously and disperse it.
4. Put water and sugar in the pot (you can put more sugar)
5. Boil on high heat until the sugar melts and change to low heat.
6. Simmer on low heat until sticky silk (a lot of bubbles)
7. Pour out the grapefruit peel and stir-fry.
8. The process of stir-frying is a bit tired, stir-fry to form icing, continue to stir-fry for 1 minute, turn off the heat, and stir-fry for 1 minute.
9. Serve and eat.
10. Put it in a glass bottle and keep it tightly sealed, and take it as you eat.
