Make up cake donuts according to manufacturer’s instructions. Let cool completely. While the donuts are cooling, place streusel in a single layer on a lined sheet tray and toast in a 350F oven for 10 minutes. Dip donuts into maple icing and sprinkle with prepared streusel. Drizzle with string icing.
Apple, Crisp, Streusel, Maple, Flat Icing, McIntosh, Gala, Red Delicious, Granny Smith, Fuji, Honeycrisp, Red Delicious, Golden Delicious