These baked protein donuts are perfect for post-workout snacking or a healthier treat. The bright lemon zest and blueberry glaze make them irresistible.
Preheat oven to 375°F. Grease a donut pan.
In a large bowl, mix flour, protein powder, baking powder, and salt.
In another bowl, whisk milk, yogurt, syrup, eggs, oil, and lemon zest.
Add wet ingredients to dry; stir until just combined.
Transfer batter to donut pan, filling each cavity ¾ full.
Bake 10-12 minutes until a toothpick comes out clean. Cool in pan, then remove.
For glaze, mash blueberries with lemon juice; stir in powdered sugar. Drizzle over cooled donuts and let set.