Creating Healthy Lemon Blueberry Cake is a breeze when following these simple steps:

1. Preheat Oven: Begin by preheating your oven to 350°F (175°C). Prepare a 9-inch round cake pan by greasing it or lining it with parchment paper.
2. Combine Dry Ingredients: In a large mixing bowl, whisk together the whole wheat flour, almond flour, granulated sugar, baking powder, baking soda, and salt.
3. Mix Wet Ingredients: In another bowl, beat together the applesauce, Greek yogurt, eggs, lemon juice, lemon zest, and vanilla extract until well combined.
4. Combine Mixtures: Gradually add the wet ingredients to the dry ingredients, stirring until the mixture is just combined. Be careful not to overmix!
5. Fold in Blueberries: Gently fold in the blueberries, ensuring they are evenly distributed throughout the batter.
6. Pour Batter: Transfer the batter into the prepared cake pan, spreading it evenly.
7. Bake: Place the pan in the preheated oven and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
8. Cool: Once baked, remove the cake from the oven and let it cool in the pan for about 15 minutes before transferring it to a wire rack to cool completely.
9. Dust with Powdered Sugar: If desired, dust the cooled cake with powdered sugar for a finishing touch before serving.

Following these steps will result in a fabulously moist and delicious Healthy Lemon Blueberry Cake!