Cranberry Waldorf Salad

Bahan-bahan (8 porsi)

• 1 ½ cups fresh cranberries (chopped)
• ⅔ cup green seedless grapes (chopped)
• ⅔ cup red seedless grapes (chopped)
• 1 apple (chopped)
• 1 cup diced celery
• ⅓ cup raisins
• ⅓ cup dried cranberries
• ½ cup chopped toasted walnuts
• 1 to 2 tablespoons granulated sugar (or to taste)
• 1 cup vanilla yogurt
• 2 teaspoons orange zest