Preheat and oven to 350F and place a silicone donut mold on a baking sheet or spray a 6-donut tin with nonstick cooking spray.
Mix the dry ingredients together in a large bowl.
Add the yogurt and eggs to a large bowl and stir until evenly mixed. (For best result, whisk the eggs together in a separate bowl before adding so you don't overmix the batter.)
Gently fold in the blueberries.
Transfer the batter to the donut mold, filling each nearly all the way full.
Bake for 20-24 minutes or until the donuts are cooked through.
Cooling and Adding the Glaze
Remove the mold from the oven and allow the donuts to briefly cool before removing and transferring to a wire rack to cool.
For the glaze, mix the confectioners sugar and water in a shallow bowl and dip the cooled donuts face down. If you'd like less glaze or a drizzle, use the lower end of the measurements and spoon it on top by hand.
Notes
Each donut has 3 Smart Points.
Nutrition info does not include carbs from the zero-calorie Swerve. If you track these carbs or use real sugar instead, each protein donut will have 12 grams of carbs.
Macros do not include the glaze since you may want to tweak the amount used. If you follow a net carbs regimen, you can ignore the macros from the glaze as Swerve is a zero-calorie, non-glycemic sweetener. If you track everything, I'd log the carbs listed on the label.