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Lemon Blueberry Cake

Lemon Blueberry Cake

This lemon blueberry cake is soft, moist, and bursting with fresh citrus flavor and juicy blueberries in every bite. Made in just one bowl, it’s a simple yet impressive dessert perfect for spring and summer gatherings. The tender crumb pairs beautifully with a rich cream cheese frosting that adds a subtle tangy finish without overpowering the cake. Whether you bake it as a sheet cake or layer it for a special occasion, this recipe delivers bakery-style results with minimal effort. It’s light, fluffy, and incredibly satisfying—perfect for brunch, dessert tables, or whenever you’re craving something bright, fresh, and homemade.
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Prep Time 25 minutes
Cook Time 35 minutes
Course: Cake, Dessert, Snack, Summer Dessert
Cuisine: American
Ingredients Method Notes

Ingredients
  

  • Ingredients You’ll Need
  • For the Lemon Blueberry Cake
  • 3 cups cake flour about 360g
  • 2 tsp baking powder
  • ½ tsp baking soda
  • ½ tsp salt
  • ¾ cup buttermilk room temp
  • ⅓ cup freshly squeezed lemon juice
  • 1 cup unsalted butter softened
  • 1¾ cups granulated sugar
  • 2 tbsp lemon zest
  • 2 tsp vanilla extract
  • 4 large eggs room temp
  • 2 cups fresh blueberries
  • 2 tsp flour for coating berries
  • Cream Cheese Frosting (9×13 Cake)
  • ½ cup unsalted butter softened
  • 8 oz cream cheese softened
  • 1 tsp fresh lemon juice
  • 3 –4 cups powdered sugar sifted
  • 1 tbsp heavy cream adjust as needed
  • Cream Cheese Frosting (Layer Cake)
  • ¾ cup unsalted butter softened
  • 12 oz cream cheese
  • 1½ tsp lemon juice
  • 4½ –5½ cups powdered sugar
  • 1 –2 tbsp heavy cream

Method
 

Step 1: Prep Your Oven & Pan

Preheat your oven to 350°F (180°C). Prepare a 9×13 pan by greasing and lightly dusting with flour. For layered cakes, line pans with parchment and grease the sides.

    Step 2: Mix Dry Ingredients

    In a bowl, combine flour, baking powder, baking soda, and salt. Stir well and set aside.

      Step 3: Combine Liquids

      In a separate bowl, mix buttermilk with lemon juice. Let it sit briefly—this boosts flavor and tenderness.

        Step 4: Cream Butter & Sugar

        Beat butter, sugar, and lemon zest until light and fluffy. This step builds the cake’s soft texture—don’t rush it.

          Step 5: Add Eggs & Flavor

          Mix in vanilla, then add eggs one at a time. Scrape the bowl between additions for even mixing.

            Step 6: Alternate Mixing

            Add dry ingredients in thirds, alternating with the milk mixture. Start and end with dry ingredients. Mix gently—overmixing = dense cake.

              Step 7: Fold in Blueberries

              Toss berries with flour, then gently fold into the batter.

                Step 8: Bake

                Pour batter into prepared pan(s).

                - 9×13 cake: bake 30–35 minutes

                - Layer cakes: bake 25–30 minutes

                Cake is ready when a toothpick comes out clean and the top springs back lightly.

                  Step 9: Cool Completely

                  Let cakes cool fully before frosting. Warm cake + frosting = melty mess (FYI).

                    Notes

                    Make the Cream Cheese Frosting

                    Beat butter until smooth, then add cream cheese and blend until creamy.
                    Mix in lemon juice and powdered sugar gradually. Adjust thickness with cream if needed.

                    Assemble & Decorate

                    For Sheet Cake

                    Spread frosting evenly over cooled cake. Top with blueberries or lemon slices.

                    For Layer Cake

                    Level layers if needed. Stack with frosting between each layer.
                    Apply a thin crumb coat, chill, then finish with a final frosting layer.

                    Smart Substitutes (Because Life Happens)

                    • No buttermilk? Use milk + 1 tbsp vinegar or lemon juice
                    • Frozen blueberries work—don’t thaw first
                    • All-purpose flour can replace cake flour (slightly denser result)
                    • Greek yogurt can swap part of the butter for a lighter texture

                    Serving Ideas That Impress

                    • Serve chilled for a firmer, bakery-style slice
                    • Pair with iced tea or lemonade for a fresh summer combo
                    • Add extra lemon zest on top for a pop of color and flavor

                    Expert Tips You’ll Be Glad You Read

                    • Room temperature ingredients = smoother batter
                    • Coating berries in flour prevents sinking
                    • Don’t overbake—dry cake is a tragedy we avoid at all costs
                    • Chill layers before stacking for cleaner results

                    FAQs

                    Can I make this ahead of time?
                     Yes! Bake the cake a day ahead and frost before serving.
                    How do I store leftovers?
                     Keep covered in the fridge for up to 4 days.
                    Can I freeze it?
                     Absolutely—freeze unfrosted layers up to 2 months.
                    Why did my blueberries sink?
                     They likely weren’t coated in flour or the batter was too thin.

                    Final Thoughts

                    This lemon blueberry cake hits that sweet spot between easy and impressive. Bright, fresh, and perfectly balanced with creamy frosting—it’s the kind of dessert that disappears fast. Whether you keep it simple as a sheet cake or go all-in with layers, one thing’s guaranteed: you’ll be making it again.
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