1 First, soak the grapefruit in warm water for about 5 minutes, which can not only clean the dirt on the grapefruit skin, but also open the pores of the grapefruit skin by using the water temperature.

2. Secondly, the soaked grapefruit is peeled in three layers: the first layer is the peel of grapefruit, which is cut into filaments about 3cm long and 1mm thick, and then marinated in salt water for a while. The second layer is the white wine between the peel and pulp of grapefruit, which is the most bitter place of grapefruit and can be selected according to the desired taste.

3. finally, peel off the grapefruit meat and stir it with a blender. Then put the cut grapefruit peel and pulp mud into a clean oil-free pot, add water and rock sugar, and cook for 1 hour on medium and low fire until the grapefruit peel is golden and translucent.