Chicken Waldorf salad

Chicken

• 500 g hot water
• 500 g chicken breasts, cut into slices (1 cm thickness)
• 1 tsp dried tarragon
• olive oil, for drizzling
• salt, to season
• ground black pepper, to season

Waldorf salad

• 100 g mayonnaise (see Tips)
• 20 g lemon juice
• 60 g sour cream
• 1 tsp Dijon mustard
• ½ tsp salt
• ½ tsp ground black pepper
• 1 bunch watercress
• ½ fresh pineapple, peeled, cored, quartered and cut into thin slices (see Tips)
• 2 celery stalks, cut into thin slices
• 1 red apple, unpeeled, cored and cut into thin slices
• 2 spring onions/shallots, trimmed and cut into thin slices
• 1 orange, peeled and segmented (optional)
• 50 g walnuts, broken into pieces (optional)