Step 1: Prepare the Chicken: In a bowl, combine flour, paprika, garlic powder, onion powder, cayenne pepper (if using), salt, and pepper. Dredge the chicken pieces in the flour mixture, ensuring they are fully coated.
Step 2: Fry the Chicken: Heat vegetable oil in a large skillet over medium-high heat. Once the oil is hot, carefully add the chicken pieces in a single layer, being careful not to overcrowd the pan. Fry for about 6-8 minutes, turning occasionally, until golden brown and cooked through. Remove the chicken from the skillet and place on a wire rack to drain excess oil. Let cool slightly, then cut into bite-sized pieces.
Step 3: Make the Dressing: In a large bowl, whisk together mayonnaise, Dijon mustard, apple cider vinegar, and honey until smooth. Season with salt and pepper to taste.
Step 4: Combine Ingredients: Add the cooled fried chicken, celery, red onion, grapes, and parsley to the bowl with the dressing. Gently toss until all ingredients are evenly coated.
Step 5: Chill and Serve: Cover the bowl and refrigerate for at least 30 minutes to allow the flavors to meld. Serve chilled on lettuce cups, croissants, or with crackers.
For a spicier kick, increase the amount of cayenne pepper or add a dash of hot sauce to the dressing. To lighten the dressing, substitute half of the mayonnaise with Greek yogurt.