Drain pineapple, reserving 1/2 cup juice.
Pour hot water over gelatin; stir until dis solved.
Chill, stirring occa sionally, until consistency of unbeaten egg white.
Fold in pineapple, celery, apple, nuts and relish.
Pour into four or six individual molds; chill until firm.
Unmoldon crisp salad greens; serve with favorite salad dressing.