1. Ingredients: 350 grams of grapes, 60 grams of sugar, 20 grams of isinglass powder.

2. Wash the grapes, squeeze the juice and take 100 grams of grape juice, filter it and set aside.

3. Pour sugar and isinglass powder into grape juice and mix well.

4. Pour the mixed grape juice into a clean, oil-free small pot and cook over low heat until the sugar and isinglass powder melt.

5. Pour it into a square container, let it cool, then put it in the refrigerator for three hours and take it out. Finally, cut the candy into appropriate size pieces according to personal preference.