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Lemon Blueberry Cake

lemon blueberry cake featured image

A perfectly moist three-layer cake with fresh blueberries, tangy lemon flavor, and creamy lemon buttercream frosting.

 

Ingredients

Scale
  • ½ cup whole milk room temperature (120ml)
  • ½ cup sour cream room temperature (120g)
  • 3 egg whites room temperature
  • 3 tablespoons fresh lemon juice
  • 1 tablespoon lemon zest
  • 1 tablespoon vanilla extract
  • 2 cups all-purpose flour (240g)
  • 1⅔ cups granulated sugar (333g)
  • 1½ teaspoons baking powder
  • ¼ teaspoon kosher salt
  • ¾ cup unsalted butter room temperature (170g)
  • 1⅓ cups fresh blueberries (180g)

For the Reduction:

  • 1½ cups fresh blueberries (200g)
  • 1 tablespoon granulated sugar
  • 1 tablespoon fresh lemon juice
  • 1 tablespoon water

For the Lemon Buttercream:

  • 1½ cups unsalted butter room temperature (340g)
  • ¼ teaspoon kosher salt
  • 6 cups confectioners’ sugar (720g)
  • 3 tablespoons fresh lemon juice

Instructions

  1. Preheat oven to 350°F. Prepare three 6-inch cake pans by buttering and flouring them.
  2. Mix wet ingredients (milk, sour cream, egg whites, lemon juice, zest, and vanilla) in one bowl.
  3. Sift dry ingredients (flour, sugar, baking powder, and salt) in another bowl. Reserve 1 tablespoon to coat blueberries.
  4. Beat butter until creamy, then add flour mixture until sandy. Gradually add wet ingredients while mixing on low.
  5. Fold in flour-coated blueberries and divide batter between pans.
  6. Bake for 30 minutes until centers are springy. Cool in pans for 15 minutes, then remove to cooling racks.
  7. Make blueberry reduction by simmering 1 cup blueberries with sugar, lemon juice, and water until reduced by half. Strain and chill.
  8. For buttercream, beat butter and salt until fluffy, gradually add sugar, then mix in lemon juice.
  9. Mix some buttercream with blueberry reduction to create blueberry buttercream.
  10. Assemble by piping lemon buttercream rings on cake layers, filling with blueberry buttercream, and stacking layers.
  11. Frost the outside with remaining lemon buttercream and decorate with buttercream dollops and frozen blueberries.

Notes

Nutrition facts are estimates and may vary based on ingredients used, portion sizes, and preparation methods.

Nutrition

Keywords: lemon cake, blueberry cake, lemon dessert, fruit cake, layer cake, summer dessert