A healthier baked donut rich in protein, and lower in sugar. Recipe makes a dozen donuts.
Preheat oven to 350F. Lightly coat donut pan with butter & flour to prevent sticking.
Mix together dry ingredients in one bowl and wet in another. Gently combine both sets of ingredients. Fold in blueberries at the end.
Spoon batter into donut pan, filling 3/4 to the top.
Bake for 10 minutes, or until a toothpick tester comes out clean.
If adding the glaze, whisk all ingredients together and drizzle glaze over cooled donuts.