2. Prepare a grapefruit peel, wash the surface layer with salt and remove the wax on the surface layer.

3. Cut the cleaned grapefruit skin into strips.

4. Put the grapefruit peel into the pot and add water to boil for a few minutes to better remove the bitterness.

5. Remove the boiled grapefruit peel and soak it in cold water. It is best to soak for one night and change the water several times in the middle. After this treatment, there is basically no bitterness.

6. Take it out and wring it out for use.

7. Put all the sugar into the pot and add half a bowl of cooked sugar.

8. Add the wringed grapefruit peel and stir while cooking to prevent it from sticking to the pot.

9. Water is basically formed by evaporation.

10, take it out of the pot and let it cool.