Lemon Blueberry Mascarpone Cake

Lemon Blueberry Mascarpone Cake is a soft, fresh, creamy layer cake built around bright lemon flavor, juicy blueberries, lemon curd, and a cold whipped mascarpone frosting. It is the kind of dessert that feels elegant enough for birthdays and brunch, but still approachable for a home kitchen.

If you love citrus desserts, this cake pairs beautifully with other fresh lemon treats like lemon blueberry cake roll and a bright zesty lemon curd cake.

Table of Contents

• Why You’ll Love This Lemon Blueberry Mascarpone Cake
• What Makes This Cake So Moist
• Ingredients You’ll Need
• How to Make Lemon Blueberry Mascarpone Cake
• How to Keep Blueberries from Sinking
• Mascarpone Frosting Tips
• Assembly and Decorating
• Storage and Make-Ahead Tips
• Frequently Asked Questions
• Save This Recipe for Later
• Try Next

lalyta

Lemon Blueberry Mascarpone Cake

This Lemon Blueberry Mascarpone Cake combines two moist lemon cake layers with fresh blueberries, tangy lemon curd, and light whipped mascarpone frosting. It is an elegant spring and summer dessert with bright citrus flavor, juicy berries, and a creamy finish.

Print Recipe Pin Recipe

Prep Time 45 minutes mins

Cook Time 30 minutes mins

Cooling and chilling 1 hour hr 30 minutes mins

Total Time 2 hours hrs 45 minutes mins

Servings: 12 slices

Course: Dessert

Cuisine: American

Calories: 649

Ingredients Equipment Method Nutrition Notes

Ingredients

  

1x2x3x?

• 2 1/2 cups all-purpose flour, 300 g, spooned and leveled
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon fine salt
• 1 1/2 cups granulated sugar, 300 g
• 2 tablespoons finely grated lemon zest, from approximately 2 large lemons
• 3 large eggs, room temperature
• 1/2 cup neutral vegetable oil, 118 ml
• 3/4 cup full-fat sour cream, 170 g, room temperature
• 1/2 cup whole milk, 120 ml, room temperature
• 1/4 cup fresh lemon juice, 60 ml
• 2 teaspoons pure vanilla extract
• 1 1/2 cups fresh blueberries, 225 g, washed and thoroughly dried
• 1 tablespoon all-purpose flour, for coating the blueberries
• 12 ounces mascarpone cheese, 340 g, very cold
• 1 1/2 cups heavy whipping cream, 360 ml, very cold
• 3/4 cup powdered sugar, 90 g, sifted
• 1 teaspoon pure vanilla extract
• 1 teaspoon finely grated lemon zest
• 1 pinch fine salt
• 3/4 cup lemon curd, 225 g, homemade or store-bought
• 1/2 cup fresh blueberries, 75 g, for decorating
• thin lemon slices, optional, for decorating

Equipment

• Two 8-inch round cake pans
• Parchment paper
• Large mixing bowl
• Medium mixing bowl
• Electric hand mixer or stand mixer
• Whisk attachment
• Silicone spatula
• Wire cooling rack
• Serrated knife
• Offset spatula
• piping bag

Method

 

1. Preheat the oven to 350°F or 175°C. Grease two 8-inch round cake pans. Line the bottoms with parchment-paper rounds, then lightly grease and flour the parchment and sides.
2. In a medium bowl, whisk together 2 1/2 cups all-purpose flour, baking powder, baking soda, and salt until evenly combined.
3. Place the granulated sugar and 2 tablespoons lemon zest in a large mixing bowl. Rub the zest into the sugar with your fingertips for about 30 seconds, until the sugar is fragrant and slightly moist.
4. Add the eggs and vegetable oil to the lemon sugar. Beat on medium speed for about 2 minutes, until lighter and slightly thickened. Mix in the sour cream, lemon juice, and vanilla extract until smooth.
5. Add one-third of the dry mixture and mix on low speed just until combined. Mix in half of the milk. Repeat with another third of the dry mixture and the remaining milk, then gently mix in the final third of the dry ingredients. Stop mixing as soon as no dry flour remains.
6. Toss the dried blueberries with 1 tablespoon of flour. Gently fold them into the cake batter with a silicone spatula, taking care not to crush the berries.
7. Divide the batter evenly between the prepared pans and smooth the tops. Bake for 28 to 32 minutes, rotating the pans once after about 20 minutes. The cakes are ready when the centers spring back lightly and a toothpick inserted in the center comes out clean or with a few moist crumbs.
8. Let the cakes cool in their pans for 15 minutes. Run a thin knife around the edges, invert the layers onto a wire rack, remove the parchment, and cool completely before frosting.
9. Place the mixer bowl and whisk attachment in the refrigerator or freezer for 10 minutes. Keep the mascarpone cheese and heavy whipping cream refrigerated until needed.
10. Add the cold mascarpone, powdered sugar, vanilla extract, lemon zest, and salt to the chilled bowl. Beat on low speed for 20 to 30 seconds, just until smooth. Do not overmix.
11. With the mixer running on low speed, slowly pour in the cold heavy cream. Once incorporated, increase to medium-high speed and whip until the frosting forms firm peaks and holds its shape. Stop mixing as soon as firm peaks form.
12. When the cake layers are completely cool, trim any domed tops with a serrated knife so the layers sit evenly.
13. Place the first cake layer on a serving plate or cake board. Pipe or spread a ring of mascarpone frosting around the outer edge to create a dam. Spread the lemon curd inside the frosting dam, stopping approximately 1/2 inch from the edge.
14. Place the second cake layer on top with its flat bottom facing upward. Press down very gently to secure it without forcing out the filling.
15. Spread a thin layer of mascarpone frosting over the top and sides of the cake to trap loose crumbs. Refrigerate the cake for 20 minutes.
16. Cover the chilled cake with the remaining mascarpone frosting. Decorate with fresh blueberries and optional thin lemon slices. Refrigerate for at least 30 minutes before slicing for the cleanest layers.

Nutrition

Calories: 649kcalCarbohydrates: 69gProtein: 9gFat: 39gSaturated Fat: 19gPolyunsaturated Fat: 4.1gMonounsaturated Fat: 14gCholesterol: 139mgSodium: 283mgPotassium: 160mgFiber: 1.3gSugar: 47gVitamin A: 1117IUVitamin C: 5.3mgCalcium: 110mgIron: 1.6mg

Notes

Use room-temperature eggs, sour cream, and milk for a smooth cake batter. Keep the mascarpone cheese and heavy cream very cold so the frosting reaches firm peaks. Fresh blueberries provide the most consistent result. Frozen blueberries can be added directly from the freezer without thawing, although they may create purple streaks in the batter. Keep the lemon curd inside a mascarpone frosting dam to prevent the filling from leaking. Store the assembled cake covered in the refrigerator for up to 3 days. Let each slice stand at room temperature for 15 to 20 minutes before serving. Nutrition information is an estimate based on 12 equal slices.

Tried this recipe?

Let us know how it was!

Why You’ll Love This Lemon Blueberry Mascarpone Cake

This cake is all about balance: lemon brings brightness, blueberries add juicy bursts, and mascarpone gives the frosting a rich but delicate creaminess. The lemon curd layer makes the flavor stronger without making the cake feel heavy.

It is a great option when you want a cake that feels more special than a simple sheet cake but fresher than a dense cheesecake. For more creamy citrus inspiration, you can also explore this easy lemon custard cake or this heavenly lemon cream roll cake.

What Makes This Cake So Moist

The analysis file highlights three important moisture helpers: oil, acidic dairy, and proper fruit handling. Oil helps the crumb stay soft after chilling, while sour cream, buttermilk, milk, or fermented milk can support a tender texture. Lemon zest rubbed into sugar also helps carry the lemon aroma through the batter.

Mascarpone adds a different kind of richness from cream cheese. It is buttery, smooth, and less tangy, which lets the lemon and blueberry flavors stay clean and fresh.

Ingredients You’ll Need

You will need cake flour or fine pastry flour, sugar, lemon zest, lemon juice, eggs, oil, an acidic dairy ingredient, leavening, salt, fresh blueberries, lemon curd ingredients, and cold mascarpone frosting ingredients.

The blueberries are the star fruit here. For another chilled berry dessert, see this no bake blueberry cheesecake, or for a richer baked option, try this creamy blueberry cheesecake.

How to Make Lemon Blueberry Mascarpone Cake

1. Preheat the oven to 350°F / 180°C and prepare your cake pans.
2. Rub lemon zest into the sugar until fragrant.
3. Whisk the dry ingredients in one bowl.
4. Mix the wet ingredients separately, then combine gently with the dry mixture.
5. Coat the blueberries lightly with flour, then fold them into the batter.
6. Bake until the cake layers are set and a toothpick comes out clean.
7. Cool the cake layers completely before filling or frosting.
8. Prepare the lemon curd and strain it for a smooth finish.
9. Whip the cold mascarpone frosting carefully, stopping once firm peaks form.
10. Assemble the layers with a frosting dam and lemon curd in the center.

How to Keep Blueberries from Sinking

Pat the blueberries dry before adding them to the batter. Then toss them with a small amount of flour. This creates a light coating around the berries and helps them stay suspended as the cake bakes.

You can also reserve a few blueberries to scatter on top of the batter before baking. They will sink slightly and create a more even fruit distribution.

Mascarpone Frosting Tips

Mascarpone frosting needs cold ingredients. Chill the bowl and whisk, keep the mascarpone and cream refrigerated, and do not overwhip. Once the frosting reaches firm peaks, stop mixing so the emulsion stays smooth.

If the mascarpone is too warm or beaten too aggressively, it can split. For related creamy desserts, these blueberry cream cheese bars are a useful comparison, while this raspberry tiramisu delight shows another mascarpone-style dessert direction.

Assembly and Decorating

Level the cooled cake layers before stacking. Add a small amount of frosting to the cake board to hold the first layer in place. Pipe a thick ring of frosting around the edge, spoon lemon curd into the center, and stack the next layer on top.

Apply a thin crumb coat and chill the cake for about 30 minutes before the final frosting layer. Finish with fresh blueberries, lemon slices, lemon zest, or a simple swirl of mascarpone cream.

Storage and Make-Ahead Tips

Because the cake contains mascarpone frosting, keep it refrigerated in an airtight container. For the best texture, remove the cake from the refrigerator 20 to 30 minutes before slicing so the frosting softens slightly and the lemon aroma becomes more noticeable.

You can make the cake layers and lemon curd ahead of time, then assemble the cake once everything is fully chilled.

Frequently Asked Questions

Can I use frozen blueberries?

Fresh blueberries are best for the cleanest texture, but frozen blueberries can be used if they are not thawed first. Toss them lightly with flour before folding them into the batter.

Can I make this cake ahead?

Yes. Bake the cake layers and prepare the lemon curd ahead, then assemble and frost the cake after everything has cooled completely.

Why did my mascarpone frosting split?

Mascarpone can split if it gets too warm or is overwhipped. Keep the bowl, whisk, cream, and mascarpone cold, then mix only until firm peaks form.

Do I need lemon curd?

Lemon curd gives the cake a stronger lemon flavor and a more bakery-style filling. If you skip it, the cake will still work, but the lemon flavor will be softer.

Save This Recipe for Later

Save this recipe for later: This lemon blueberry mascarpone cake is fresh, creamy, and perfect for spring, summer, birthdays, or brunch. Save it on Pinterest and read the full article on the blog.

Try Next

Try these next: blueberry cream cheese bars | raspberry tiramisu delight