Lemon Blueberry Cake Recipe for a Moist, Tangy Dessert

By:

Ruby Bennett

Published:

June 12, 2026

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Ingredients You Need

This lemon blueberry cake gets its incredible flavor from a handful of key ingredients. Here is what you will need:

Blueberries: Fresh or frozen work well. If using frozen, thaw and drain them, then toss in flour to prevent sinking.
Sugar: Granulated for the cake and filling, powdered sugar for the frosting to keep it silky smooth.
Fresh lemons: You need both the zest and the juice. Zest the lemons first, then juice them. Fresh juice is essential for the cake, filling, and frosting.
Unsalted butter: Control the salt yourself. If using salted butter, reduce added salt in the recipe.
Whole milk: Buttermilk can be substituted in a pinch (1 cup milk + 1 tablespoon lemon juice, let sit 5 minutes).
Neutral vegetable oil: Avoid olive or coconut oil; use canola or grapeseed for a clean flavor.
Cream cheese: US brick style or UK spreadable both work. Soften to room temperature for smooth frosting.

See the recipe card below for the full ingredient amounts. For a quick glance, here is the summary of the three components:

Blueberry filling: 4 heaping cups blueberries, 1 cup sugar, juice of 2 lemons.
Lemon cake: 3 cups all purpose flour (spooned and leveled), 1 tbsp baking powder, 1/2 tsp salt, 1/2 cup unsalted butter, 1/2 cup vegetable oil, 1 3/4 cups sugar, 3 large eggs, 1 cup milk, 1/2 cup lemon juice, 2 tsp vanilla, 1 tbsp lemon zest.
Lemon cream cheese frosting: 1 cup unsalted butter, 8 oz cream cheese, 2 cups powdered sugar, 1 2 tbsp lemon juice.

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Variations

This lemon blueberry cake is wonderfully adaptable. Try one of these twists:

Gluten Free: Swap the all purpose flour with Bob’s Red Mill 1 to 1 gluten free flour. It works beautifully and gives you a tender crumb.
Different berries: Blackberries, raspberries, strawberries, or a mixed berry blend can replace the blueberries. Adjust sugar slightly if using very tart berries.
Blueberries in the cake (no filling): Omit the blueberry filling and fold 1.5 cups fresh or thawed blueberries (tossed in 1 tablespoon flour) into the cake batter at the very end. Bake as directed.

How to Make Lemon Blueberry Cake

Follow these steps to create a stunning four layer cake with a tangy blueberry filling and creamy lemon frosting.

Step 1: Make the Blueberry Cake Filling

In a saucepan, combine 4 heaping cups blueberries, 1 cup sugar, and the juice of 2 lemons. Bring to a simmer over medium high heat. Cook for 5 to 10 minutes, stirring constantly, until the blueberries soften and the sauce thickens and reduces by about one third. You can mash the berries for a smoother filling or leave them chunky. Remove from heat and let cool completely to room temperature. The filling will thicken further as it cools.

Pro tip: This filling is also fantastic for homemade pop tarts or as a topping for pancakes.

Step 2: Make the Lemon Cake

Preheat your oven to 350°F (175°C). Line two 8 inch baking pans with parchment paper. In a small bowl, whisk together 3 cups all purpose flour, 1 tablespoon baking powder, and 1/2 teaspoon salt.

In a large bowl, beat 1/2 cup unsalted butter (room temperature), 1/2 cup vegetable oil, and 1 3/4 cups granulated sugar until creamy, about 2 minutes. Add 3 large eggs one at a time, mixing well after each. Alternately add the dry ingredients with 1 cup milk and 1/2 cup fresh lemon juice, starting and ending with the dry mixture. Stir in 2 teaspoons vanilla extract and 1 tablespoon lemon zest just until combined. The batter should hold a soft peak.

Divide the batter evenly between the prepared pans (weighing helps ensure even layers). Bake for 28 to 32 minutes, until a toothpick inserted in the center comes out clean or with a few moist crumbs. Cool in the pans for 10 to 15 minutes, then transfer to a wire rack to cool completely. Once cool, cut each layer horizontally to make four thin layers.

Pro tip: Weigh your batter for perfectly even layers. For a 9 inch pan, bake as two thicker layers instead.

Step 3: Make the Lemon Frosting

In a large bowl, beat 1 cup unsalted butter (room temperature) until creamy, about 2 minutes. Add 8 oz cream cheese (softened) and mix until smooth. Sift in 2 cups powdered sugar and beat until creamy. Add 1 to 2 tablespoons fresh lemon juice, starting with 1 tablespoon. If the frosting is too thick, add more juice; if too soft, add a little more powdered sugar. The finished consistency should be creamy but firm enough to spread with an offset spatula.

Pro tip: Room temperature butter and cream cheese blend more easily and give a silkier texture. Cold ingredients can cause lumps.

Step 4: Assembling the Blueberry Lemon Cake

Place the first cake layer on a cake turntable or serving plate. Spread about 1/4 of the frosting on top, making the frosting slightly higher around the edges to create a well. Spoon 1/3 of the cooled blueberry filling into the center (where the frosting is lower). Repeat with two more cake layers, adding frosting and filling each time. Place the final layer on top. Use the remaining frosting to lightly cover the outside and sides. This is a naked cake style; you can double the frosting if you prefer a fully frosted look.

Chill the assembled cake for at least 4 hours before serving. This helps the layers set and makes slicing cleaner. For decoration, try candied lemons and berries, edible flowers (like chamomile), meringue kisses, or a drizzle of extra blueberry sauce.

Expert Tips for Success

Blueberry sauce consistency: Cook until reduced by a third, about 5 to 10 minutes. Let it cool completely; a warm filling will make the frosting run.
Flat cake layers: If your cakes dome, trim the tops with a serrated knife to create even surfaces. This makes stacking much easier.
Room temperature ingredients: Butter, eggs, milk, and cream cheese should all be at room temperature. This helps the batter emulsify and creates a tender crumb.
Frosting amount: This recipe makes enough for a lightly frosted naked cake. For full coverage, multiply the frosting by 1.5 or 2.
Plan ahead: Make the blueberry filling and bake the cake layers a day in advance. Store them separately in the fridge until you are ready to assemble.
Right size pans: 8 inch pans work best for splitting into four layers. If you use 9 inch pans, keep them as two layers to avoid thin, fragile slices.

Storing Suggestions

Keep your lemon blueberry cake fresh with these storage methods:

Leftover cake: Store in an airtight container in the refrigerator for up to 4 days. For longer storage, wrap individual slices in plastic wrap and freeze for up to 2 months.
Cake layers in advance: After baking, cool completely. Wrap each layer tightly in plastic wrap, then foil, and place in a freezer bag. Freeze for up to 1 month. Thaw unwrapped on the counter for 1 to 2 hours before filling and frosting.
Assembled decorated cake: Chill the finished cake for 3 hours, then freeze until firm (about 2 hours). Wrap tightly in plastic wrap and foil, then freeze for up to 2 months. Thaw in the refrigerator overnight and serve within 2 days.

Recipe FAQs

Can I use frozen blueberries in lemon blueberry cake?

Yes, you can use frozen blueberries without thawing. Toss them in a tablespoon of flour before folding into the batter to prevent them from sinking and to minimize color bleeding.

How do I keep blueberries from sinking in lemon cake?

Toss fresh or frozen blueberries in a little all purpose flour or cornstarch before adding them to the batter. This coats the berries and helps them stay suspended during baking.

Why is my lemon blueberry cake dry?

Overbaking is the most common cause. Check doneness a few minutes earlier than the recipe states. Also, using too much flour or not enough fat or liquid can lead to dryness. Buttermilk adds moisture and tenderness.

Can I make lemon blueberry cake ahead of time?

Yes, you can bake the cake layers a day ahead. Cool completely, wrap tightly in plastic wrap, and store at room temperature. Frost the cake on the day you plan to serve it for best texture.

How long does lemon blueberry cake last?

Properly stored in an airtight container at room temperature, it keeps for up to 2 days. Refrigerated, it can last 4 to 5 days. Bring to room temperature before serving for best flavor.

Can I freeze lemon blueberry cake?

Yes, you can freeze unfrosted cake layers for up to 3 months. Wrap each layer in plastic wrap then aluminum foil. Thaw in the refrigerator overnight, then bring to room temperature before frosting.

Lemon Blueberry Cake Recipe for a Moist, Tangy Dessert

Ingredients You Need

Variations