Creating Healthy Lemon Blueberry Cake is quite simple if you follow these detailed steps:

1. Preheat Your Oven: Begin by preheating your oven to 350°F (175°C). Grease and line an 8-inch round cake pan with parchment paper for easy removal.
2. Mix Dry Ingredients: In a large bowl, whisk together the flour, granulated sugar, baking powder, and salt until well combined.
3. Combine Wet Ingredients: In another bowl, combine the applesauce, almond milk, lemon zest, lemon juice, and vanilla extract. Whisk these ingredients together until smooth.
4. Blend Mixtures: Gradually add the wet mixture to the dry ingredients, stirring gently until 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 into Pan: Transfer the batter to the prepared cake pan, spreading it evenly.
7. Bake: Place the pan in your preheated oven and bake for 30-35 minutes. The cake is ready when a toothpick inserted into the center comes out clean.
8. Cool the Cake: Once out of the oven, allow the cake to cool in the pan for about 15 minutes. Then, gently transfer it to a wire rack to cool completely.
9. Optional Glaze: For an extra treat, you can drizzle a simple glaze made with lemon juice and powdered sugar over the cooled cake.

These easy-to-follow steps will lead you to a successful baking experience, resulting in a stunning and tasty Healthy Lemon Blueberry Cake.