Creating Lemon Blueberry Pound Cake is simple when you follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×5 inch loaf pan.
2. Mix Dry Ingredients: In a bowl, whisk together the flour, baking powder, baking soda, and salt.
3. Cream Butter and Sugar: In a large mixing bowl, cream the softened butter and granulated sugar until light and fluffy.
4. Add Eggs and Flavor: Beat in the eggs, one at a time, then add the vanilla extract, lemon zest, and lemon juice. Mix until incorporated.
5. Combine Mixtures: Gradually add the dry ingredients to the wet mixture, alternating with sour cream. Mix until just combined.
6. Fold in Blueberries: Gently fold in the blueberries, being careful not to overmix to keep them intact.
7. Pour Batter: Pour the batter into the prepared loaf pan, smoothing the top with a spatula.
8. Bake: Bake in the preheated oven for 50-55 minutes, or until a toothpick inserted into the center comes out clean.
9. Cool the Cake: Remove the cake from the oven and let it cool in the pan for 15-20 minutes. Afterward, transfer it to a wire rack to cool completely.
10. Dust with Powdered Sugar: If desired, dust the top with powdered sugar before slicing and serving.

These steps will guide you in creating a delicious Lemon Blueberry Pound Cake that will impress everyone around you.