Preheat oven to 350?F. Spray 8 cavities in a donut pan with non-stick cooking spray. Set aside.

In a large mixing bowl, whisk together the flour, baking powder, and salt. Set aside.

In a separate mixing bowl, mix together the milk, sugar, egg, butter, lemon juice, lemon zest, and vanilla until fully combined.

Add the dry ingredients to the wet ingredients and mix until just combined. Gently fold in the blueberries.

Evenly distribute the batter between the 8 cavities of the prepared donut pan.

Bake at 350?F for 9-10 minutes or until a toothpick inserted into the donut comes out clean. Allow to cool for about 10 minutes, then invert onto a wire rack to cool.

To make the glaze, whisk together the powdered sugar and lemon juice until well combined. Adjust consistency as needed.

Place a piece of foil under the wire rack to catch any glaze. Dip each donut into the glaze and place onto the wire rack. Allow the glaze to harden before serving.