waldorf salad recipe

Ingredients: 2 cups apples, diced (use a mix of tart and sweet apples) 1 cup celery, diced 1 cup grapes, halved (red or green) 1/2 cup walnuts, chopped 1/2 cup mayonnaise 1 tablespoon lemon juice Salt and pepper, to taste Optional: 1/4 cup raisins or dried cranberries Optional: 1/4 cup Greek yogurt (to lighten up the dressing)