Making Baked Blueberry Donuts can be simple if you follow these easy steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and grease a donut pan.

2. Combine Dry Ingredients: In a large bowl, whisk together the flour, sugar, baking powder, baking soda, salt, and cinnamon.

3. Mix Wet Ingredients: In a separate bowl, whisk the egg, buttermilk, melted butter, and vanilla extract until well combined.

4. Combine Mixtures: Pour the wet ingredients into the dry ingredients, mixing gently until just combined. Be careful not to over-mix.

5. Add Blueberries: Fold in the fresh blueberries, ensuring they are evenly distributed throughout the batter.

6. Fill the Donut Pan: Spoon the batter into the prepared donut pan, filling each cavity about halfway.

7. Bake: Place the pan in the preheated oven and bake for 12-15 minutes, or until the donuts spring back when touched.

8. Cool: Remove the pan from the oven and let it cool for about 10 minutes before transferring the donuts to a wire rack to cool completely.

9. Prepare the Glaze (Optional): In a small bowl, mix the powdered sugar, milk, and vanilla extract until smooth. Adjust the consistency as needed by adding more milk or sugar.

10. Glaze the Donuts: Dip the top of each cooled donut into the glaze or drizzle it over for a finishing touch.

These simple steps will guide you in creating a batch of these incredible donuts effortlessly!