Preheat oven to 350°F, place streusel on a parchment lined baking tray and bake for 10 minutes, let cool completely.
Prepare donut mix according to manufacturer’s instructions. Fry and let cool completely. Fill donuts with blueberry filling. Mix together 100% white flat icing and 6.25% blueberry fuit bits, dip donuts in prepared icing and sprinkle with cooled streusel.
Bismark, Bismarck, Berliner,Doughnut