Step-11 Poach the chicken (skip if using already cooked chicken): Bring a pot with 2 quarts of well salted water (1 tablespoon salt) to a boil.
Step-2Add the chicken breast (cut into large chunks) and return the water to a simmer. Then turn off the heat, and cover the pot.
Step-3Let the chicken sit for 15 minutes (time it) or more while you prepare everything else.
Step-42 Make the dressing: Prepare the chicken salad dressing in a large bowl.
Step-5Mix together the mayonnaise, preserves, and lemon juice. Taste for the proper balance of sweetness and acidity. The salad dressing should not be too sweet, nor too sour.
Step-6Add more preserves or lemon juice until you have reached the balance you want.
Step-7Add salt and pepper to taste.
Step-8Mix in the chopped celery, bell pepper, olives, red onion, and apple.
Step-9Remove the chicken from the poaching water and dice it. (Or dice already cooked chicken if that is what you are using for this salad.)
Step-10Mix it in with the dressing and vegetables.
Step-11Add lettuce: At this point you can make ahead. When ready to serve, fold in the sliced and chopped iceberg lettuce.