Instructions:
- Prepare the Topping (The Crunch): In a medium bowl, combine chopped pecans, brown sugar, and melted butter. Spread mixture thinly on a small baking sheet.
- Bake the topping mixture at 350°F (175°C) for 5–7 minutes until fragrant and slightly darkened. Cool completely. (Alternatively, toast pecans in a dry skillet over medium heat.)
- Prepare the Grapes: Ensure all grapes are completely dry. Halve all grapes lengthwise using a sharp knife. Place them in the largest serving bowl.
- Make the Creamy Dressing: In a separate large bowl, beat the softened cream cheese until smooth and fluffy, ensuring there are no lumps.
- Gradually whisk in the sour cream, granulated sugar, and vanilla extract into the cream cheese until the mixture is entirely uniform and creamy.
- Assemble and Chill: Gently pour the cream cheese dressing over the prepared grapes. Using a large rubber spatula, carefully fold the mixture until the grapes are evenly coated, taking care not to crush them.
- Cover the bowl tightly and refrigerate for at least 1 hour (2-3 hours is recommended) to allow the flavours to meld.
- Serve: Just before serving, sprinkle the cooled, crunchy pecan topping evenly over the top of the salad. Serve chilled.