Pop enough water or stock in a pot on the stove that will cover the chicken breasts when you pop them in. Bring it to the boil. Once boiling, turn the heat down to a simmer and gently place the chicken in. Poach for 15 minutes. Remove from the pot to rest for 5 minutes and then slice or shred the chicken for the salad.
Combine the dressing ingredients in a small bowl.
Place the salad leaves, cucumber, snow peas, avocado, and mango on a large platter. Top with sliced/shredded chicken and herbs. Drizzle dressing over and season with salt and pepper.
