Bring the washed and pitted fruits (firm fruits are best) to the boil with the port wine, water, sugar and plum jam spice mixture and simmer for 2-3 minutes.
Mix the cornstarch with a little water until smooth and bind the compote with it.
If you like it a little thicker, take more cornstarch.
The compote is ideal hot and cold as an accompaniment to vanilla, cinnamon or chocolate ice cream. But also with many other desserts.