Fruit Simmered in Juice

Steps

Translated from the Korean original. Amounts are as in the original recipe.

1. Cut the nectarines in half, remove the pits, and cut each in half again, and halve the plums and remove the pits.
2. Cut the apple into 8 pieces and remove the seeds.
3. Remove the grapes from the stems, remove the stems from the cherries, and prepare the blueberries and raspberries in the measured amounts.
4. Put the grape juice, sugar, and prepared fruit in a pot and boil over low heat.
5. When the nectarines are soft and the grape juice has thickened, turn off the heat.
6. Serve the simmered fruit together with the juice on a plate.