This lemon raspberry layer cake is a true celebration of bright, fresh flavors. Layers of a light, fluffy white cake are brushed with a tart lemon syrup, keeping the cake moist and intensifying the citrusy notes. Inside, a luscious lemon buttercream and tangy homemade lemon curd mingle with juicy, fresh raspberries for a refreshing, elegant dessert.
Perfect for springtime gatherings or any special occasion, this cake balances buttery sweetness with zesty lemon and vibrant raspberry for a dessert that delights every sense. The attention to detail in each component—from the lemon syrup to the silky buttercream—makes this cake a standout centerpiece.
- Combines tart lemon curd and fresh raspberries for a perfectly balanced flavor profile
- Light cake brushed with lemon syrup ensures moistness and extra lemony punch
- Made with carefully executed lemon buttercream that is silky and rich
Ingredients
- Unsalted Butter (6 tbsp/86 g): Provides richness and tender crumb for the cake, and is softened to room temperature for easy mixing.
- Neutral Oil (6 tbsp/75 g): Adds moisture without altering flavor, creating a light, soft texture in the cake layers.
- Sugar (1⅓ cups/270 g, divided): Granulated sugar sweetens the cake, lemon curd, and buttercream, with some reserved for whipping egg whites to stability.
- Vanilla Extract (2 tsp): Enhances the lemon flavor with warm, sweet notes in the cake batter.
- Lemon Zest (Zest of 1 lemon): Adds fresh, aromatic citrus oils to brighten the cake base.
- Cake Flour (3 cups/360 g): Creates a tender crumb with its lower protein content compared to all-purpose flour.
- Baking Powder (1 tbsp): Leavens the cake, giving it rise and a fluffy texture.
- Kosher Salt (½ tsp): Balances sweetness and amplifies overall flavors throughout the recipe.
- Milk (1 cup/240 g): Adds moisture and helps dissolve the sugar, used at room temperature for even mixing.
- Large Egg Whites (6): Whipped to glossy, stiff peaks to lighten the cake batter and create airiness.
- Fresh Lemon Juice (½ cup to 1 cup, divided): Key ingredient in the lemon curd and syrup, providing bright, tart citrus flavor.
- Heavy Cream (2 tbsp): Enriches the lemon curd for a silky texture.
- Eggs and Egg Yolks (4 large eggs, 2 yolks): Used to enrich the lemon curd and to create a stable base for the Swiss-style buttercream.
- Unsalted Butter (3 cups/681 g, for buttercream): Room temperature chunks help create a smooth and luscious lemon buttercream.
- Sugar and Water (1½ cups sugar and ¾ cup water combined for syrups): Used to make the lemon syrup and the sugar syrup for the Swiss meringue buttercream.
- Fresh Raspberries (1 pint/260 g): Fresh, juicy berries add a burst of flavor and color between cake layers and on top.
Instructions
- Prepare Cake Pans and Oven
Preheat the oven to 350°F and grease three 9-inch round cake pans. Line with parchment paper to ensure easy release and even baking. This prep step is crucial for cakes to bake evenly without sticking to the pans.
- Cream Butter, Oil, and Sugar
In a stand mixer fitted with the paddle attachment, beat unsalted butter, neutral oil, and 1 cup of sugar on medium speed until pale and fluffy, about 2-3 minutes. This aeration gives the cake a light and tender crumb. Scrape down the bowl to incorporate all ingredients evenly.
- Add Flavorings and Dry Ingredients Alternately
Add vanilla extract and lemon zest, beating briefly to combine. Whisk together cake flour, baking powder, and salt in a separate bowl. Then gradually alternate adding flour mixture and milk into the creamed butter mixture, mixing on low speed. This method prevents overmixing and ensures uniform texture.
- Whip Egg Whites to Stiff Peaks
In a clean, grease-free bowl, whip egg whites with remaining sugar until glossy stiff peaks form. This adds volume and air, turning the cake light and tender.
- Fold Egg Whites into Batter
Gently fold one-third of the whipped egg whites into the batter to lighten it. Then carefully fold in the remaining whites, preserving as much air as possible for fluffiness.
- Divide and Bake Cake Layers
Evenly distribute the batter between prepared pans. Bake for 20-25 minutes until the cakes pull away from the pan edges and spring back to the touch. Let cool in pans for 30 minutes before transferring to wire racks to cool completely.
- Make Homemade Lemon Curd
Combine fresh lemon juice, butter, and heavy cream in a saucepan; heat just below boiling. Whisk eggs, yolks, and sugar in a bowl, then slowly temper with hot lemon mixture. Return to the pan, cook gently until thickened. Pass through sieve to remove lumps, and chill. This creates a smooth, tangy curd perfect for layering.
- Prepare Swiss Meringue Lemon Buttercream
Boil sugar and water to 238°F for a syrup. Whisk eggs and yolks to pale and thick. Slowly add hot syrup while whisking, then beat until cooled to room temp. Add cubed butter gradually and whip until smooth. Salt balances the sweetness. This buttercream is silky, stable, and intensely lemon-flavored.
- Make Lemon Syrup
Combine lemon juice, water, and sugar in a saucepan; bring to boil and dissolve sugar. Cool to room temperature. Brushing this syrup on the cake layers keeps them moist and enhances lemon flavor.
- Mix Lemon Curd and Buttercream for Filling
Combine 3 cups of buttercream with ½ cup lemon curd for a luscious, tangy filling. Reserve some lemon curd separately for topping. This blend brightens the buttercream and adds creamy citrus notes.
- Assemble the Cake Layers
Level cake layers if domed. Place cake on board, brush with lemon syrup, then spread curd-buttercream mixture and layer fresh raspberries. Repeat with second layer. Top with third layer, brush with syrup, and refrigerate to firm before frosting. This layering builds texture and flavor contrast.
- Apply Crumb Coat and Final Frosting
Thinly coat cake with plain buttercream, chill 30 minutes. Then frost with remaining buttercream smoothly. Spread reserved lemon curd on top and decorate with raspberries. Chilling between steps ensures a neat, professional finish.
- Use room temperature ingredients to ensure proper emulsification and texture in cake and frosting.
- Whipping egg whites in a clean bowl without any fat is critical for volume and structure.
- Cooling the buttercream before adding butter helps prevent curdling and achieves a silky texture.
Storage Tips
Store the cake covered in the refrigerator for up to 3 days. Bring to room temperature before serving for the best flavor and texture. Lemon curd and buttercream layers help keep it moist.
Serving Suggestions
Serve slices garnished with additional fresh raspberries and a light dusting of powdered sugar. This cake pairs wonderfully with a cup of Earl Grey tea or a sparkling rosé for celebratory occasions.
- Trim your cake layers carefully for an even stack and professional look.
- When folding egg whites, use a gentle hand to maintain volume and lightness.
- If the buttercream looks curdled, continue whipping; it will smooth out as it reaches room temperature.
FAQs
- Can I use all-purpose flour instead of cake flour?
Yes, but substitute with all-purpose flour minus 2 tablespoons per cup to mimic the lower protein content. This helps maintain the cake’s tenderness.
- Can I make the lemon curd ahead of time?
Absolutely. Lemon curd can be made up to 4 days ahead and refrigerated in an airtight container, allowing flavors to deepen.
- Is it necessary to use egg whites separately?
Yes, whipping egg whites separately creates aeration that lightens the cake. Incorporating them carefully keeps the texture fluffy.
- Can I substitute raspberries with other berries?
Yes, blueberries or blackberries work well, but raspberries provide the best balance of tartness and sweetness with lemon.
- How long does the assembled cake need to chill?
At least 1 hour in the refrigerator to allow the syrup and fillings to set for clean slicing and better flavor melding.
- Can this cake be frozen?
Yes, wrap tightly and freeze up to 1 month. Thaw overnight in the fridge before serving.
Lemon Raspberry Layer Cake
Equipment
- 3 9-inch round cake pans
- 1 stand mixer with paddle and whisk attachments
- 1 medium saucepan
- 1 heatproof bowl
- 1 wire rack
- 1 Offset spatula
- 1 piping bag fitted with 1/2-inch tip
Instructions
- Preheat oven to 350°F. Grease and line three 9-inch round cake pans with parchment paper.
- In a stand mixer with paddle attachment, cream butter, oil, and 1 cup sugar until light and creamy. Add vanilla and lemon zest and mix until combined.
- In a medium bowl, whisk together cake flour, baking powder, and salt.
- Alternately add flour mixture and milk to the creamed ingredients in thirds and halves, mixing gently after each addition. Transfer batter to a large bowl.
- Clean mixer bowl thoroughly. Whip egg whites with whisk attachment until soft peaks form, slowly adding remaining sugar until stiff and glossy peaks form.
- Fold a third of the egg whites into the batter to lighten it, then gently fold in remaining whites until well combined.
- Divide batter evenly into prepared pans and bake 20-25 minutes until cakes spring back and begin to pull from edges. Cool in pans for 30 minutes before transferring to a wire rack to cool completely.
- For lemon curd: Heat lemon juice, butter, and heavy cream in a saucepan to just under boiling. Whisk eggs, egg yolks, and sugar in a heatproof bowl.
- Gradually whisk hot lemon mixture into eggs, then return all to saucepan. Cook over medium heat stirring constantly until thickened, about 5-8 minutes.
- Strain curd through a sieve, whisk in salt and vanilla, cover, and refrigerate until cold.
- For buttercream: Boil sugar and water without stirring until syrup reaches 238°F.
- Beat eggs and egg yolks until pale. Slowly add hot syrup with mixer running, then whip until cooled to room temperature.
- Add butter chunks gradually, mixing until smooth and combined. Add salt and whip again.
- For lemon syrup: Boil lemon juice, water, and sugar until dissolved. Cool to room temperature.
- Mix 3 cups buttercream with 1/2 cup lemon curd; set aside remaining buttercream and 1/3 cup lemon curd for decoration.
- If cakes are domed, trim to level. Place cake layer on cake board. Brush with lemon syrup.
- Spread 1 cup curd-buttercream mixture evenly. Pipe a border with 1/2 cup for flood layer. Spread half of the lemon curd and half the raspberries on top.
- Add second layer, brush with syrup, repeat filling and flood layer with remaining curd-buttercream, curd, and raspberries.
- Top with third layer, brush with syrup, then chill for 1 hour to firm.
- Apply thin crumb coat with 1 cup plain buttercream and chill 30 minutes.
- Frost top and sides with remaining buttercream. Spread reserved lemon curd on top and decorate with reserved raspberries and any leftover buttercream.
Notes
- Trim cakes if uneven for better stacking.
- Use room temperature ingredients for best mixing.
- Store leftovers refrigerated up to 4 days.
- Can freeze assembled cake for up to 1 month.
- Use fresh raspberries for best flavor and texture.
