PREP GRAPES: Wash 4 pounds seedless red or green grapes under cold water. Dry the grapes completely with a clean kitchen towel or paper towels and place them in a large mixing bowl.
MAKE CREAMY FILLING: In a large bowl, beat 8 ounces softened cream cheese with an electric mixer until smooth and fluffy, about 1 minute. Add 1 cup sour cream and ⅓ cup granulated sugar. Beat until creamy and fully combined.
ADD FLAVOR: Mix in 1 teaspoon pure vanilla extract and 1 teaspoon fresh lemon juice. Beat on low speed until smooth.
COAT GRAPES: Add the prepared grapes to the cream cheese mixture. Fold gently with a rubber spatula until the grapes are evenly coated.
CHILL OR SERVE: Serve immediately, or cover and refrigerate for up to 4 hours for the best flavor.
ADD TOPPING: Just before serving, sprinkle ½ cup granola evenly over the grape salad.
Notes
Make-Ahead: This salad can be prepared up to 4 hours ahead. Cover and refrigerate. Add the granola just before serving so it stays crunchy.Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days.Ingredient Tip: Be sure the grapes are completely dry before mixing. Any extra moisture can thin the creamy dressing.