Making Lemon Blueberry Cake is easy when you follow these step-by-step instructions:

1. Preheat Your Oven: Set your oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan or two 9-inch round cake pans.
2. Mix Dry Ingredients: In a large bowl, whisk together the flour, baking powder, and salt until well combined.
3. Cream Butter and Sugar: In another bowl, beat the softened butter and sugar together until light and fluffy, about 2-3 minutes.
4. Incorporate Eggs: Add the eggs to the butter mixture one at a time, blending well after each addition.
5. Add Wet Ingredients: Mix in the buttermilk, lemon zest, and vanilla extract until fully incorporated.
6. Combine Mixtures: Gradually add the dry ingredients to the wet ingredients, stirring until the mixture is smooth and free of lumps.
7. Fold in Blueberries: Carefully fold in the fresh blueberries to avoid crushing them.
8. Pour Batter: Transfer the batter into the prepared baking pan(s), smoothing the top with a spatula.
9. Bake: Bake in the preheated oven for 35-40 minutes or until a toothpick inserted into the center comes out clean.
10. Cool the Cake: Remove from the oven and allow the cake to cool in the pan for about 15 minutes. Then transfer it to a wire rack to cool completely.
11. Serve as Desired: Once cooled, you can dust it with powdered sugar or add a lemon glaze if preferred.

Following these steps closely ensures you’ll create a wonderfully moist and bursty Lemon Blueberry Cake that everyone will love!