Clean lamb's lettuce, wash thoroughly and drain. Halve the melon and remove the seeds. Cut 12 thin slices from one half and remove the skin as desired. Cut out balls from the remaining melon with a ball cutter.
Wash the peppers and dice very finely. Wash basil, dab dry and cut into strips. Caramelise sugar in a pan until golden brown. Deglaze with 4-5 tablespoons of boiling water and vinegar.
Bring to the boil, let it boil down for about 1 minute and add diced peppers. Season with salt and pepper and simmer for 1-2 minutes. Add melon balls and simmer for another 1-2 minutes. Stir in basil. Arrange lamb's lettuce and melon wedges on 4 plates and add the lukewarm melon balls with the sauce.
Serve immediately.