#1 Preheat oven to 350 degrees F #2 Fill each section of a greased cupcake pan with ¼ cup of blueberries, topping with 1 tsp of brown sugar, and 1 tbsp of walnuts #3 To a large bowl, combine cake mix and vanilla cream soda, and mix until smooth #4 Using an ice cream scoop, pour 1 scoop of cake and soda mix into each section of pan #5 Bake for 25 minutes, then remove from oven and let cool for 5 minutes #6 Cover with a cutting board and flip over to remove mini blueberry cakes #7 Sprinkle powdered sugar and a dollop of whipped topping, and serve!