Wash and remove all grapes from the stems. Let them air dry for a bit while you mix up the creamy sauce.
In a mixer( I like to use my KitchenAid), add sour cream, sugar, and cream cheese to the bowl. Mix all ingredients until nice and creamy
Put the grapes in a large bowl and pour the cream cheese mixture over the top. Stir up to cover all the grapes.
Let sit in the fridge until you are ready to serve.
Right before serving, sprinkle the brown sugar on the top. If you sprinkle and then refrigerate for a couple hours, the brown sugar will begin to start turning into liquid.
Serve and enjoy!
This stays well over night in the fridge, but make sure to add the brown sugar before serving.
If you have leftovers, I like to mix the remaining brown sugar on the salad into the salad and put it into a tuperware. It will be amazing the next day!