Lemon Blueberry Cake

Last summer my neighbor brought over an overflowing basket of blueberries from her garden patch. I stood there staring at them, knowing exactly what had to happen. That afternoon became a baking marathon that filled the entire street with the most incredible citrus perfume.

I brought that first cake to a neighborhood potluck and watched three different people ask for the recipe before dessert was even over. My friend Sarah admitted she normally skips cake at parties but went back for seconds. Something about the brightness just makes people happy.

Ingredients

• 2 1/2 cups all-purpose flour: The foundation that gives structure while keeping things tender
• 2 1/2 tsp baking powder: Ensures a nice rise without affecting the delicate flavor profile
• 1/2 tsp baking soda: Works with the acidic lemon juice for extra lift
• 1/2 tsp salt: Essential for balancing sweetness and enhancing all the flavors
• 1/2 cup unsalted butter: Adds richness and that irresistible buttery undertone
• 1/2 cup vegetable oil: The secret to keeping this cake incredibly moist for days
• 1 1/2 cups granulated sugar: Sweetens without overpowering the bright citrus notes
• 3 large eggs: Room temperature eggs incorporate better for a uniform texture
• 1 tbsp finely grated lemon zest: Where all those fragrant citrus oils live
• 1/4 cup fresh lemon juice: Adds tang and reacts with baking soda for lift
• 1 cup whole milk: Creates tenderness and a velvety crumb
• 1 tsp vanilla extract: Rounds out the sharp citrus with warm comfort
• 1 1/2 cups fresh blueberries: Toss them in flour first to prevent sinking to the bottom
• 8 oz cream cheese: Room temperature is non negotiable for smooth frosting
• 1/4 cup unsalted butter: Makes the frosting stable yet creamy
• 2 cups powdered sugar: Sifting prevents lumps and ensures silkiness
• 1 tbsp fresh lemon juice: Cuts through the richness of the frosting
• 1 tsp finely grated lemon zest: Little flecks of brightness in every bite
• 1/2 tsp vanilla extract: Balances the tangy cream cheese
• Pinch of salt: Wakes up all the frosting flavors

Instructions

Preheat your kitchen:

Get the oven to 350°F and prep your pans with grease and flour or parchment circles

Whisk the dry team:

Combine flour, baking powder, baking soda, and salt in a medium bowl

Cream butter, oil, and sugar:

Beat together for 2 to 3 minutes until it looks pale and fluffy

Add the eggs:

Drop them in one at a time, letting each disappear completely before adding the next

Infuse with lemon:

Mix in the zest, juice, and vanilla until the batter smells amazing

Alternate wet and dry:

Add half the flour mixture, then the milk, then remaining flour, mixing gently each time

Fold in the berries:

Gently incorporate those flour coated blueberries until evenly distributed

Bake until golden:

Divide between pans and bake 30 to 35 minutes until a toothpick comes out clean

Cool completely:

Give them 10 minutes in the pans, then flip onto racks to cool entirely

Make the frosting:

Beat cream cheese and butter until creamy, then add powdered sugar, lemon juice, zest, vanilla, and salt

Assemble and frost:

Spread frosting between layers, over the top, and around the sides

Garnish if desired:

Top with extra berries and zest for that picture perfect finish

Save

This became my go to birthday cake after my mom requested it instead of her usual chocolate. Something about the combination feels celebratory without being too heavy or sweet.

Making It Ahead

The unfrosted cake layers freeze beautifully wrapped tightly for up to a month. Just thaw them on the counter while you make the frosting and no one will ever know.

Serving Suggestions

Earl Grey tea pairs unexpectedly well with the citrus notes. For summer gatherings, a crisp white wine or even sparkling wine with a lemon twist feels special.

Blueberry Wisdom

Frozen blueberries work in a pinch but do not thaw them first or they will bleed into the batter. Fresh berries give the best result and that little burst of juice when you bite into them.

• Toss berries in flour before folding to keep them evenly distributed
• Gently fold instead of stirring to avoid smashing the fruit
• If using frozen, add them last and work quickly

Save

There is something about the way the bright lemon and sweet blueberries play together that feels like sunshine on a plate. Hope it brings as much joy to your table as it has to mine.

Recipe Questions & Answers

→ Can I use frozen blueberries instead of fresh?

Yes, frozen blueberries work perfectly in this cake. Don't thaw them before adding—toss them with flour just like fresh berries to prevent sinking. The baking time may increase by a few minutes.

→ How should I store the finished cake?

Store the frosted cake in an airtight container in the refrigerator for up to 5 days. Bring to room temperature for about 30 minutes before serving for the best texture and flavor.

→ Can I make this cake in advance?

Absolutely! Bake the cake layers up to 2 days ahead, wrap tightly in plastic, and store at room temperature. Make the frosting separately and assemble when ready to serve.

→ What makes this cake so moist?

The combination of butter and vegetable oil creates exceptional moisture. Butter adds rich flavor while oil keeps the crumb tender and prevents the cake from drying out quickly.

→ Can I bake this as a single-layer sheet cake?

Yes, pour the batter into a 9x13-inch pan and bake for 35-40 minutes at 350°F. You may need to halve the frosting amount depending on how thickly you want to top it.

→ Why toss blueberries with flour?

Coating berries in a tablespoon of flour prevents them from sinking to the bottom during baking. This simple step ensures even distribution throughout every slice.