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lemon blueberry cake

Lemon Blueberry Layer Cake

Delicious layer cake pairs fresh lemon juice and fresh lemon zest with fresh blueberries. Layers are topped with vanilla buttercream. Semi-naked outside coat of lemon buttercream. Top piped with vanilla and blueberry buttercream.
Prep Time 15 mins
Cook Time 1 hr
Assembly and Decoration 1 hr
Total Time 2 hrs 15 mins
Course Brunch, Dessert
Cuisine American
Servings 8

Equipment

  • 3 (6-inch) round cake pans.

Ingredients
  

Lemon Blueberry Cake:

  • 330 grams cake flour (3 cups)
  • 10 grams baking powder (2 teaspoons)
  • 3 grams sea salt (1/2 teaspoon)
  • 180 grams whole milk (3/4 cup)
  • 60 grams fresh lemon juice (1/4 cup)
  • 226 grams unsalted butter (8 ounces OR 2 sticks), softened
  • 400 grams granulated sugar (2 cups)
  • 200 grams egg (4 large), room temperature
  • 10 grams vanilla bean paste or vanilla extract (2 teaspoons)
  • 6 grams fresh lemon zest (1 tablespoon)
  • 320 grams fresh blueberries (2 cups)
  • 15 grams cake flour (approx. 2 tablespoons)

Vanilla Buttercream:

  • 113 grams unsalted butter (1/2 cup OR 1 stick)
  • 250 grams powdered sugar (2 cups)
  • 5 grams vanilla extract (1 teaspoon)
  • 15 grams heavy cream (1 tablespoon)

Lemon Buttercream:

  • 113 grams unsalted butter (1/2 cup OR 1 stick)
  • 250 grams powdered sugar (2 cups)
  • 30 grams lemon curd or fresh lemon juice (2 tablespoons)
  • 1 drop yellow food coloring gel

Cake Top Decoration:

  • 30 grams blueberry puree (2 tablespoons)

Instructions
 

Lemon Blueberry Cake:

  • Preheat oven to 350 degrees F. Butter the bottom and sides of three (6-inch) cake pans. Line the bottom of each pan with aparchment paper round.
  • Add cake flour, baking powder, and sea salt to a small mixing bowl. Whisk to combine. Set aside.
  • Add fresh lemon juice to milk and set aside for several minutes.
  • Add unsalted butter and granulated sugar to stand mixer. Beat on medium high speed for about 3 minutes.
  • Add eggs one at a time, beating on low after each addition for about 30 seconds, or until incorporated.
  • Add vanilla bean paste and fresh lemon zest. Beat on low for about 15 seconds, or until incorporated.
  • Add half the flour mixture. Beat on low, just until incorporated, about 30 seconds. Add half the milk mixture. Beat on low, just until incorporated, about 30 seconds. Repeat process with remaining flour and milk mixtures. Avoid over mixing.
  • Add blueberries and cake flour to small bowl. Toss gently to combine.
  • Remove bowl from stand mixer. Fold blueberries into cake batter using large spatula.
  • Transfer cake batter to prepared cake pans. Bake cakes in preheated oven for 30 minutes or until they are golden along the edges, firm to the touch, and a toothpick interested into the center comes out clean.
  • Remove cake pans from oven and cool completely. Invert pans and remove cakes.

Vanilla Buttercream:

  • Add unsalted butter to stand mixer. Beat on medium high speed for 5 minutes.
  • Add half the powdered sugar and beat on low for 30 seconds. Add the remaining powdered sugar and beat on low for 3 seconds. Increase speed to medium high and beat for 5 minutes.
  • Add vanilla extract and heavy cream to buttercream. Beat on low until incorporated, about 1 minute.
  • Frost top of two layers using small offset spatula. Stack the two layers. Place the third cake layer on top.
  • Reserve remaining vanilla buttercream.

Lemon Buttercream:

  • Add unsalted butter to stand mixer. Beat on medium high speed for 5 minutes.
  • Add half the powdered sugar and beat on low for 30 seconds. Add the remaining powdered sugar and beat on low for 30 seconds. Increase speed to medium high and beat for 5 minutes.
  • Add lemon curd or lemon juice to buttercream. Beat on low until incorporated, about 1 minute.
  • Add 1 drop yellow food coloring gel, if desired.
  • Frost the top and sides of the cake with lemon buttercream, using small offset spatula.

Cake Top Decoration:

  • Pipe shapes with reserved vanilla buttercream. Tint remaining vanilla buttercream with blueberry puree and pipe shapes with blueberry buttercream.
Keyword blueberry buttercream, buttercream, layer cake, lemon blueberry cake, lemon buttercream