Get the Chicken Ready: If you're not using chicken that's already cooked, you need to cook it. You can boil, bake, or fry chicken breasts until they're fully cooked. Let the chicken cool a bit, then shred it with two forks or cut it into small pieces.
Chop Everything Up: Cut the apple into small, even pieces. You can keep the skin on or peel it, it's up to you. Chop the pecans or walnuts into smaller pieces too.
Mix the Dressing: In a big bowl, put the mayonnaise, Greek yogurt, apple cider vinegar, Dijon mustard, salt, and pepper. Stir it all together until it's smooth and creamy.
Add the Ingredients: Put the shredded chicken, diced apple, dried cranberries, and chopped nuts into the bowl with the dressing.
Mix it All Up: Stir everything gently until the ingredients are covered with the dressing. Make sure there are no dry parts.
Chill and Serve: Let the salad sit for a bit it to let the taste gets better. Cover the bowl with plastic wrap and put it in the fridge for at least 30 minutes, or even longer. This lets all the flavors mix together. When you're ready to eat, give it a stir. You can add chopped chives or green onions on top.