Creating a Lemon Blueberry Cake is simple if you adhere to these step-by-step instructions:

1. Preheat the 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, baking soda, and salt.
3. Beat the Butter: In another bowl, beat the softened butter and sugar until light and fluffy.
4. Add Eggs: Incorporate the eggs one at a time, making sure to mix well after each addition.
5. Combine Yogurt and Flavorings: Add the Greek yogurt, lemon zest, lemon juice, and vanilla extract to the egg mixture, mixing until combined.
6. Integrate Dry Ingredients: Gradually add the flour mixture to the wet ingredients until just combined, being careful not to overmix.
7. Fold in Blueberries: Gently fold in the fresh blueberries, preventing them from breaking apart.
8. Pour Batter: Transfer the batter into the prepared baking pan(s), smoothing out the top with a spatula.
9. Bake: Place the cake in the oven and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
10. Cool: Remove the cake from the oven and let it cool in the pan for about 15-20 minutes before transferring it to a wire rack to cool completely.
11. Dust with Powdered Sugar: Once cool, dust the top with powdered sugar for a finishing touch before serving.

Following these steps will ensure a beautiful and delicious Lemon Blueberry Cake ready for enjoyment.