Blueberry Cake with Lemon Frosting

Why You’ll Love This Recipe

I like this recipe because it feels like a celebration in cake form. The crumb is tender and plush, the blueberries are juicy and sweet, and the lemon zest adds a refreshing lift. The lemon cream cheese frosting gives it just the right tang, complementing the richness of the cake. Whether I’m baking it for a birthday, a brunch, or a simple afternoon treat, it never fails to wow everyone.

Ingredients

(Note: All ingredient amounts are listed in the recipe card below.)

2 cups flour, plain / all-purpose
2 1/2 teaspoons baking powder
1/4 teaspoon salt
4 large eggs (at room temperature)
1 1/2 cups caster / superfine sugar
115g (1/2 cup) unsalted butter, melted and hot
1 cup sour cream, full fat, at room temperature
3 teaspoons vanilla extract
3 teaspoons vegetable or canola oil
3 teaspoons lemon zest

Blueberries
375g (2 1/2 cups) blueberries
2 teaspoons flour

Lemon Cream Cheese Frosting
225g (2 sticks) unsalted butter, at room temperature
250g (8oz) cream cheese, brick style
4 cups icing sugar / powdered sugar, sifted
1 teaspoon vanilla extract
2 tablespoons lemon juice
Pinch of salt

For Decoration (optional):
Extra blueberries, lemon slices, and edible flowers

Blueberry Cake with Lemon Frosting Directions

I start by preheating the oven to 180°C (160°C fan) and greasing three 20cm cake pans with butter before lining them with parchment paper.

Next, I set aside about one-third of the blueberries for the top and toss the rest with 2 teaspoons of flour to prevent them from sinking in the batter.

In a large bowl, I whisk together the flour, baking powder, and salt. In a separate bowl, I beat the eggs on high speed for about 30 seconds, then slowly pour in the sugar and continue beating for about 7 minutes until the mixture becomes pale, thick, and tripled in volume.

I add the flour mixture in three parts, gently mixing on low speed after each addition until just combined.

In another bowl, I whisk together the sour cream, melted butter, oil, vanilla extract, and lemon zest until smooth. I then take about 1 1/2 cups of the egg mixture and whisk it into the sour cream mixture to lighten it before gently folding it back into the main batter.

Once combined, I fold in the flour-coated blueberries and divide the batter evenly among the cake pans. I scatter the reserved blueberries on top.

I bake the cakes for about 25 minutes, or until golden and a toothpick inserted into the center comes out clean. After baking, I let them cool in their pans for 15 minutes, then invert them onto a wire rack to cool completely.

To make the frosting, I beat the butter until pale and creamy, then add the cream cheese and mix until smooth. I gradually add the sifted icing sugar on low speed until combined, then increase to high speed and beat for 2 minutes until fluffy. Finally, I add the vanilla extract, lemon juice, and a pinch of salt, mixing until perfectly smooth.

Once the cakes are completely cool, I layer and frost them, finishing with swirls of lemon cream cheese frosting. I decorate with extra blueberries, lemon slices, and edible flowers for a stunning finish.

Servings and Timing

This recipe serves 12–14 people. It takes about 30 minutes to prepare, 25 minutes to bake, and about 2 hours to cool completely before frosting.

Variations

I sometimes swap half the blueberries for raspberries or blackberries for a mixed berry twist. For a lighter flavor, I reduce the lemon zest slightly or use orange zest instead. If I want a more decadent touch, I add a thin layer of blueberry jam between the cake layers before frosting. For a simpler version, I bake it as a single sheet cake and spread the frosting on top.

Storage/Reheating

I store the frosted cake in the fridge in an airtight container for up to 5 days. Before serving, I always bring it to room temperature for the best texture. If I want to make it ahead, I bake the layers a day in advance, wrap them in plastic, and refrigerate them. The frosting can also be made ahead and kept in the fridge for up to 3 days—just re-whip it before spreading.

FAQs

Can I use frozen blueberries?

Yes, I can use frozen blueberries straight from the freezer. I toss them with flour and add them to the batter without thawing.

Can I make it gluten-free?

Yes, I use a good-quality 1:1 gluten-free flour blend.

Can I make cupcakes instead of a layered cake?

Definitely. I divide the batter into cupcake liners and bake for about 20 minutes.

What if I don’t have sour cream?

I can substitute it with full-fat Greek yogurt for a similar result.

How do I stop the blueberries from sinking?

Coating them lightly with flour helps suspend them evenly in the batter.

Can I freeze the cake?

Yes, unfrosted cake layers freeze beautifully for up to 3 months. Thaw in the fridge overnight before frosting.

Can I use light cream cheese?

I prefer full-fat cream cheese—it gives a richer flavor and better texture for the frosting.

Why is my frosting runny?

It might be that the cream cheese or butter was too soft. I chill the frosting for 30 minutes, then re-whip it.

Can I make it in one large pan instead of layers?

Yes, I use a 23x33cm rectangular pan and bake for about 35 minutes.

What can I serve with it?

I like serving this cake with fresh berries or a cup of tea—it’s lovely on its own too.

Conclusion

I find this Blueberry Cake with Lemon Frosting to be a show-stopping dessert that’s as beautiful as it is delicious. The soft lemony sponge, bursting blueberries, and creamy frosting make every bite a perfect balance of sweetness and tang. Whether I bake it for a celebration or just to brighten a weekend, it always brings joy and plenty of compliments.

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