Creating this wonderful Blueberry Cake with Lemon Cream Cheese Frosting can be rewarding, and following these detailed steps will ensure success:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
2. Combine Dry Ingredients: In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
3. Cream Butter and Sugar: In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy.
4. Add Eggs and Vanilla: Beat in the eggs one at a time, ensuring they are fully incorporated. Stir in the vanilla extract.
5. Alternate Adding Dry Ingredients and Milk: Gradually add the flour mixture to the butter mixture, alternating between adding the milk. Mix until fully combined and smooth.
6. Fold in Blueberries and Zest: Gently fold in the blueberries, lemon zest, and lemon juice, ensuring they are evenly distributed within the batter.
7. Pour Batter Into Pans: Divide the batter equally between the prepared cake pans.
8. Bake: Place the pans in the preheated oven and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
9. Cool Cakes: Once baked, remove the cakes from the oven and allow them to cool in the pans for about 10 minutes. Then, transfer them to wire racks to cool completely.
10. Prepare the Frosting: In a mixing bowl, beat the softened cream cheese and butter together until smooth. Gradually add the powdered sugar, lemon juice, and zest, mixing until creamy and spreadable.
11. Assemble the Cake: Once the cakes are completely cool, spread a layer of frosting on top of one cake layer. Place the second layer on top and frost the top and sides of the entire cake.
12. Decorate: Optionally, garnish with fresh blueberries and a sprinkle of lemon zest for an appealing touch.

Following these steps will lead you to create a truly incredible Blueberry Cake with Lemon Cream Cheese Frosting that is bound to impress friends and family alike!