In a large bowl, combine the waffle batter (prepared according to your box directions) with the sour cream. Swirl in 1/2 cup of Blueberry Fruit Filling.
Add batter to the waffle maker, and gently swirl in 1 tsp of the Blueberry Fruit Filling and cook until golden brown. Continue until you've used up all the batter.
Plate waffles warm and top with fresh/frozen blueberries and a sprinkling of powdered sugar or syrup.