Whisk the dressing: In a large bowl, whisk together the mayonnaise (or Greek yogurt), granulated sugar, lemon juice, and salt until well combined and smooth.
Add salad ingredients: Add the diced apples, raisins, chopped toasted walnuts, and chopped celery to the bowl with the dressing.
Toss to combine: Gently toss all the ingredients together until the apples, raisins, walnuts, and celery are evenly coated with the creamy dressing.
Chill: Wrap the bowl tightly with plastic wrap and refrigerate the salad until you are ready to serve. Chilling allows the flavors to meld together beautifully.
Serve: Once chilled, the Creamy Crunchy Apple Salad is ready to be enjoyed. Serve it as a side dish or a light meal.
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