1-First Step: Preheat your oven to 350°F (175°C). Grease and flour three 8-inch round cake pans, or line with parchment for easy release. Gather all ingredients mise en place style. This sets you up for smooth baking, even for beginners tackling this lemon blueberry layer cake recipe.

2-Second Step: In a medium bowl, whisk together 2 ½ cups all-purpose flour, 2 tsp baking powder, ½ tsp baking soda, and ½ tsp salt. Set aside. Dry ingredients ensure even distribution, key for a moist lemon blueberry cake.

3-Third Step: In a large bowl, beat 1 cup softened unsalted butter and 1 ¾ cups granulated sugar with an electric mixer on medium speed until light and fluffy, about 3-4 minutes. This incorporates air for tenderness in your berry layer cake.

4-Fourth Step: Add 4 large eggs one at a time, beating well after each. Mix in 2 tsp vanilla extract, zest of 3 lemons, and ½ cup fresh lemon juice. Scrape down the bowl to blend fully. These steps build the signature zing of the lemon layer cake.

5-Fifth Step: Add dry ingredients in three additions, alternating with 1 ¼ cups buttermilk, starting and ending with dry. Mix on low until just combined. Avoid overmixing to keep the easy lemon berry cake light.

6-Sixth Step: Toss 2 cups fresh blueberries in 1 tbsp flour, then gently fold into the batter. This prevents sinking, ensuring even fruit in every slice of homemade lemon berry layer cake.

7-Seventh Step: Divide batter evenly among pans. Bake 25-30 minutes until a toothpick inserted comes out clean. Cool in pans 10 minutes, then transfer to wire racks. For vegan adaptations, same temps work with plant-based swaps.

8-Eighth Step: Simmer 1 ½ cups blueberries, ⅓ cup sugar, 2 tbsp lemon juice, and 1 tbsp cornstarch over medium heat for 5-7 minutes until thickened. Cool completely. Gluten-free batter bakes similarly.

9-Ninth Step: Beat 16 oz softened cream cheese and ½ cup butter until smooth. Gradually add 4 cups confectioners’ sugar, then zest of 2 lemons, 3 tbsp lemon juice, and 1 tsp vanilla. Beat until fluffy. For low-calorie, use half the sugar.

10-Tenth Step: Level cooled layers if needed. Place one on serving plate, spread with half blueberry filling, then frosting. Repeat layers. Frost top and sides smoothly. Chill 30 minutes to set.

11-Final Step: Garnish with lemon slices or blueberries. Serve at room temp. This lemon blueberry cake recipe yields 12-16 slices, perfect for sharing. Total time: about 2 hours including cooling. Inspired by classics like this version from Sally’s Baking Addiction.