Combine the prawns, grapes, celery, almonds, water chestnuts and lychees in a large bowl. Trim off the top and bottom of the pineapple and quarter. Slice off the points of each quarter to remove the core.

Slice the pineapple skin away and cut the flesh into bite-size pieces. Add to the prawns and toss to mix.

Break the Chinese cabbage or endive and wash well. If using Chinese cabbage, shred the leafy part finely, saving the thicker ends of the leaves for other use. Place the Chinese cabbage on salad plates. Mix the remaining dressing ingredients thoroughly. Pile the salad ingredients onto the leaves and spoon over some of the dressing, leaving the ingredients showing. Separate endive leaves and arrange them whole. Serve remaining dressing separately.