01 - Pat chicken breasts dry and season generously with 1 teaspoon salt and ½ teaspoon black pepper. Heat olive oil in a large skillet over medium-high heat until shimmering. Place chicken in pan and cook for 7-8 minutes per side until golden brown and internal temperature reaches 165°F. Transfer to a cutting board, let rest for 5 minutes, then dice or shred into bite-sized pieces.
02 - In a large mixing bowl, add the cooked chicken along with diced celery, red onion, apple, halved grapes, toasted nuts, and fresh herbs. Toss gently to distribute ingredients evenly.
03 - In a separate small bowl, whisk together mayonnaise, Greek yogurt, mango chutney, curry powder, turmeric, cumin, lemon juice, honey, ½ teaspoon salt, and ¼ teaspoon black pepper. Whisk vigorously until completely smooth and well blended.
04 - Pour the curry dressing over the chicken mixture. Using a large spoon or spatula, fold gently to coat all ingredients evenly without mashing the fruit or nuts.
05 - Taste the salad and adjust as needed. Add additional salt, pepper, or lemon juice to balance flavors. The curry should be noticeable but not overpowering.
06 - Cover the bowl and refrigerate for at least 30 minutes, or up to 24 hours, to allow flavors to meld. Serve chilled as a main course salad, in sandwiches or wraps, or over a bed of mixed greens.