Creating a delicious Lemon Blueberry Cake is easy if you follow these steps:

1. Preheat Your Oven: Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
2. Mix Dry Ingredients: In a medium bowl, sift together the flour, baking powder, and salt.
3. Cream Butter and Sugar: In a large bowl, cream the softened butter and granulated sugar until light and fluffy.
4. Add Eggs: Beat in the eggs, one at a time, making sure to incorporate each fully before adding the next.
5. Incorporate Lemon Zest and Juice: Add the lemon zest, lemon juice, and vanilla extract to the mixture. Mix well.
6. Combine Mixtures: Alternate adding the dry ingredients and buttermilk to the sugar mixture, beginning and ending with the dry ingredients. Mix until just combined.
7. Fold in Blueberries: Gently fold in the blueberries to avoid breaking them.
8. Divide Batter: Pour the batter evenly into the prepared cake pans.
9. Bake: Place in the oven and bake for 30-35 minutes or until a toothpick inserted into the center comes out clean.
10. Cool: Remove from the oven and allow the cakes to cool in their pans for 15 minutes. Afterwards, transfer the cakes to wire racks to cool completely.
11. Assemble: Once cooled, place one layer on a serving platter. You can add lemon frosting or whipped cream in between layers if you wish!
12. Dust with Powdered Sugar: For a beautiful finish, dust the top with powdered sugar before serving.

Following these steps will ensure your Lemon Blueberry Cake turns out perfectly delicious!