Follow these simple steps to create your delicious Sour Cream Blueberry Coffee Cake:

1. Preheat Your Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan or use parchment paper for easy removal.
2. Mix Dry Ingredients: In a medium bowl, sift together the flour, baking powder, baking soda, and salt. Set aside.
3. Cream Butter and Sugar: In a large mixing bowl, use a hand mixer to cream together the softened butter and granulated sugar until light and fluffy.
4. Add Sour Cream and Eggs: Beat in the sour cream, eggs, and vanilla extract until well combined.
5. Incorporate Dry Ingredients: Gradually add the dry mixture to the wet ingredients, stirring until just combined. Be careful not to overmix.
6. Fold in Blueberries: Gently fold in the fresh blueberries, taking care not to break them up too much.
7. Pour Batter into Pan: Spread the batter evenly into the prepared baking pan.
8. Bake: Place in the preheated oven and bake for 45-50 minutes or until a toothpick inserted into the center comes out clean.
9. Cool the Cake: Once done, remove from the oven and let it cool in the pan for about 10-15 minutes before transferring it to a wire rack.
10. Dust with Powdered Sugar: Once completely cooled, dust the top with powdered sugar if desired, and then slice for serving.

By following these steps, you’ll create an incredible coffee cake that showcases the incredible flavors of sour cream and blueberries!