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Blueberry Lemon Cake Recipe

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★★★★★

5 from 108 reviews

This Blueberry Lemon Cake is a stunning, bakery-quality dessert featuring moist lemon layers studded with blueberries, and layered with a luscious lemon buttercream and a jewel-toned blueberry reduction frosting. The combination of real lemon zest and juice with fresh and frozen blueberries creates a vibrant flavor balance, while the blueberry reduction frosting adds a beautiful color and subtle berry essence. Despite its elegant appearance, it’s approachable and perfect for special occasions or weekend baking.

Ingredients

Scale

For the Cake

  • 1/2 cup milk (room temperature, about 70°F)
  • 1/2 cup sour cream (full-fat)
  • 3 egg whites
  • 3 tbsp lemon juice
  • 1 tbsp lemon zest
  • 1 1/2 tbsp vanilla essence
  • 1/4 tsp almond extract
  • 2 cups flour
  • 1 2/3 cups sugar
  • 1 3/4 tsp baking powder
  • 1/2 tsp salt
  • 3/4 cup butter (softened)
  • 1 1/3 cups blueberries (preferably frozen)

For the Blueberry Reduction

  • 1/2 cup blueberries (frozen)
  • 1 cup blueberries (fresh or frozen wild blueberries)
  • 1 1/2 tbsp sugar
  • 1 tbsp lemon juice
  • 1 tbsp water

For the Frosting

  • 1 1/2 cups butter (unsalted)
  • 1/2 tsp salt
  • 6 cups icing sugar (sifted)
  • 4 tbsp lemon juice (freshly squeezed)

Instructions

  1. Preheat Oven and Prep Ingredients: Heat your oven to 350°F and grease three 6-inch round cake pans. While waiting for the oven, bring the milk, sour cream, and butter to room temperature (about 70°F). Zest and juice fresh lemons, sift the icing sugar for the frosting, and measure all dry ingredients (flour, sugar, baking powder, salt) into one bowl to ensure smooth mixing and prevent temperature-related baking issues.
  2. Whisk Wet Mixture and Simmer Blueberry Compote: In a bowl, whisk together milk, sour cream, egg whites, lemon juice, lemon zest, vanilla essence, and almond extract until fully combined. Meanwhile, in a medium saucepan over medium heat, combine 1 cup of blueberries (fresh or frozen), sugar, lemon juice, and water. Simmer gently for 8-10 minutes, stirring occasionally until berries burst and the liquid reduces by half. Set the compote aside to cool completely; this is essential to avoid melting the frosting later.
  3. Mix Batter and Fold in Blueberries: Beat the softened butter in a larger bowl for 1 minute until creamy. Add the dry ingredient mixture and beat until the texture resembles damp sand with no visible flour streaks. Pour in the wet mixture and combine gently for about 30 seconds until the batter is fluffy, taking care not to overmix. Toss the 1 1/3 cups blueberries with 1 tablespoon of flour from the dry ingredients to prevent sinking, then fold them carefully into the batter with minimal strokes to preserve airiness.
  4. Bake and Cool Cake Layers: Divide the batter evenly into the prepared pans and smooth the tops. Bake for 30 minutes or until a toothpick inserted in the center comes out with a few moist crumbs. Let the cakes cool in their pans for 15 minutes before transferring them to a wire rack to cool completely (30-45 minutes). While cooling, strain the blueberry compote through a fine-mesh sieve into a bowl, pressing gently to extract all liquid; discard solids and let the juice cool fully.
  5. Whip and Flavor the Buttercream: Beat 1 1/2 cups unsalted butter with 1/2 teaspoon salt for 3 minutes until pale and fluffy. Gradually add the sifted icing sugar, beating for 1 minute until smooth and combined. Stir in freshly squeezed lemon juice to fully incorporate. Reserve 1 cup of this lemon buttercream separately, then fold the cooled blueberry reduction liquid into the remaining frosting to create a lovely berry-tinted frosting with delicate berry flavor.
  6. Stack and Frost the Cake Layers: Transfer both lemon and berry frostings into piping bags fitted with round tips. Place one cooled cake layer on your serving plate and pipe a ring of lemon frosting around the edge; fill the center with berry frosting. Repeat with the second layer, then place the final layer on top. Cover the outside of the cake with lemon frosting using an offset spatula, smoothing or texturing as you prefer. Decorate the top with piped frosting circles and frozen blueberries for an elegant, jewel-like finish.
  7. Chill the Finished Cake Before Serving: Refrigerate the assembled cake for at least 20 minutes to allow the frosting to set and flavors to meld. For cleaner slicing, remove the cake from the fridge 15 minutes before serving so it softens slightly and reaches an optimal eating temperature.

Notes

  • Toss blueberries with flour before folding them into the batter to prevent sinking during baking.
  • Use frozen blueberries for the best texture and to keep berries suspended in the batter.
  • Cool the blueberry compote completely before folding into the frosting to prevent melting.
  • Chilling the cake before slicing ensures clean cuts; use a sharp, hot-water-rinsed knife for best results.
  • Store cake in an airtight container in the refrigerator for up to 5 days to maintain freshness.
  • Freeze unfrosted layers wrapped tightly for up to 3 months; thaw in the fridge overnight before frosting.
  • To freeze a decorated cake, first freeze uncovered for 1 hour to firm frosting, then wrap tightly for up to 1 month.
  • Press plastic wrap directly onto any cut surfaces to prevent drying out of the lemon buttercream.

Keywords: blueberry lemon cake, lemon cake, blueberry frosting, lemon buttercream, blueberry reduction, layered cake, berry dessert

Find it online: https://tastybella.com/blueberry-lemon-cake-recipe/