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Strawberry Layer Cake (With Swiss Meringue Buttercream)

Some cakes instantly make any occasion feel a little more special, and this Strawberry Layer Cake is definitely one of them. Soft, fluffy sponge, silky Swiss meringue buttercream, and fresh strawberry syrup layered together—it has everything I love in a celebration cake. It’s elegant without being complicated and lets the natural flavour of fresh strawberries shine.

I’ve always loved desserts that taste like the fruit they’re made with rather than relying on artificial flavourings. That’s why this cake starts with fresh strawberries, which are gently reduced before being folded into the sponge. The strawberry flavour in the cake itself is delicate and subtle, while the homemade strawberry syrup between the layers adds little bursts of fruity sweetness in every bite. Paired with the light Swiss meringue buttercream, it creates a cake that’s rich enough to feel indulgent but still wonderfully light.

One thing I particularly enjoy about this recipe is how balanced it is. The buttercream isn’t overly sweet, the sponge stays incredibly soft, and the fresh strawberries brighten up every layer. It’s the kind of cake that looks impressive on the table but disappears surprisingly quickly because everyone goes back for another slice.

If you’ve been following my blog for a while, you’ll know I have a soft spot for fruit-filled celebration cakes. And if you’re just like me, try my Mango Custard Cake, Chocolate Cherry Layer Cake, or Fluffy Black Grape Cake for a fun twist on cakes.

Although this recipe has a few different components, don’t let that put you off. Taking it one step at a time makes the whole process surprisingly enjoyable, and the end result is more than worth it. Whether you’re baking it for a birthday, a family gathering, or simply because strawberries are in season, I hope this Strawberry Layer Cake brings as much joy to your kitchen as it has to mine.

Why You’ll Love This Strawberry Layer Cake

• Light, soft, and fluffy sponge with delicate strawberry notes.
• Fresh strawberry syrup filling adds natural fruity flavour.
• Silky Swiss meringue buttercream that’s less sweet than traditional buttercream.
• Perfect for birthdays, celebrations, especially summer gatherings.
• Made using real strawberries without artificial flavouring.
• Beautiful enough for special occasions yet achievable at home.

Ingredients You’ll Need

For the detailed list, find recipe card below:

Since this cake has three main components, it’s easiest to gather everything before you begin.

Strawberry Sponge Cake

• Fresh strawberries- Fresh strawberries are cooked down into a concentrated reduction before being added to the batter. This intensifies their flavour without adding too much moisture to the sponge. Frozen strawberries can be used as well.
• Eggs- Room-temperature eggs whip up to maximum volume, creating the light and airy texture that makes this sponge so soft.
• Granulated sugar- Sweetens the cake while helping stabilize the whipped eggs for a fluffy structure.
• Vanilla extract- Adds warmth and rounds out the subtle strawberry flavour.
• All-purpose flour- Provides structure while still keeping the crumb tender.
• Cornflour- A small amount helps create an even softer, lighter crumb.
• Salt- Balances the sweetness and enhances the overall flavour.
• Unsalted butter- Adds richness and tenderness to the sponge. If using salted butter, omit the added salt.
• Milk- Keeps the cake moist while making the butter mixture easier to incorporate.

Strawberry Compote/Syrup

• Fresh strawberries- The star ingredient that cooks down into a naturally sweet, vibrant strawberry syrup.
• Granulated sugar- Draws out moisture from the berries and helps thicken the syrup.

Swiss Meringue Buttercream

• Egg whites- Whip into a glossy meringue that forms the base of the buttercream.
• Granulated sugar- Dissolves into the egg whites, creating a smooth, stable meringue.
• Unsalted butter- Softened butter transforms the meringue into a silky, creamy frosting.
• Vanilla extract- Adds a gentle flavour without overpowering the strawberries.

For Decorating (Optional)

• Fresh strawberries
• Strawberry syrup or strawberry reduction
• Melted white chocolate
• Fresh mint leaves

Decorate as simply or elaborately as you like. Even a few fresh strawberries on top make this cake look beautiful.

How to Make Strawberry Layer Cake?

This cake is made in four parts: the strawberry sponge, strawberry syrup, Swiss meringue buttercream, and finally assembling everything together. It may look like a lot of work, but tackling one component at a time makes the process much more manageable.

Strawberry Sponge Cake:

• Make the Strawberry Reduction: Start by washing and hulling your strawberries, then blend them into a smooth purée. Transfer the purée to a small saucepan and cook it over medium heat, stirring occasionally to prevent it from sticking. As the water evaporates, the purée will thicken and become more concentrated. Reduce 80g of strawberry purée to approximately 31g. This concentrated reduction gives the sponge a subtle strawberry flavour without adding excess liquid, which helps maintain its light and airy texture. Transfer the reduction to a bowl and allow it to cool completely before using it in the batter.

Tip: Don’t rush this step by increasing the heat. A gentle reduction preserves the fresh strawberry flavour and prevents scorching.

• Prepping: Preheat your oven to 160°C (320°F). Grease and line a 6-inch round cake tin with parchment paper.
• Eggs & Sugar: In a heatproof bowl, combine the room-temperature eggs and sugar. Place the bowl over a saucepan of gently simmering water, making sure the bottom of the bowl doesn’t touch the water. Whisk continuously until the sugar has completely dissolved, or the mixture reaches 40°C (104°F).  Warming the eggs helps them whip into a much more stable and voluminous foam.
• Wet ingredients: Meanwhile, place the butter, milk, and 1 tablespoon of the strawberry reduction into another small heatproof bowl. Set this bowl over hot water so the mixture stays warm while you prepare the batter.
• Creating Volume of Cake: Remove the egg mixture from the heat and beat it on high speed until it becomes pale, thick, and reaches the ribbon stage. When you lift the whisk, the batter should fall in thick ribbons that briefly sit on the surface before disappearing. Mix in the vanilla extract.
• Combining dry ingredients: Sift together the flour, cornflour, and salt. Add them to the whipped eggs in batches, folding gently with a spatula after each addition. Use broad folding motions rather than stirring to preserve as much air as possible.
• Introducing richness and flavour: Remove the warm butter mixture from the hot water and stir to combine. Add 3–4 tablespoons of the cake batter to the butter mixture and mix until smooth. This lightens the butter mixture, making it easier to incorporate into the main batter without deflating it. Pour this mixture back into the remaining batter and fold gently until no streaks remain.
• Bake & Cool: Transfer the batter into the prepared cake tin and gently tap the pan against the counter a few times to release large air bubbles. Bake for 25–27 minutes, or until the top springs back lightly when touched and a skewer inserted into the centre comes out clean. Allow the cake to cool in the pan for about 3–4 minutes, then carefully transfer it to a wire rack to cool completely. Once cooled, slice the cake horizontally into three even layers.

Strawberry Syrup

• Combine the strawberries and sugar in a saucepan over low to medium heat. As the strawberries soften, gently stir every few minutes while they release their juices. Continue cooking until the strawberries become very soft and the liquid thickens slightly.
• Strain the mixture through a fine-mesh sieve, pressing gently to extract the syrup. You’ll end up with approximately 80 ml of vibrant strawberry syrup, which will be used between the cake layers. Allow the syrup to cool completely before assembling the cake.

Swiss Meringue Buttercream

• Combine the egg whites and sugar in a heatproof bowl. Place it over a saucepan of gently simmering water and whisk continuously until the sugar has completely dissolved (rub a little between your fingers to check for any sugar granules), or the mixture reaches 65°C (149°F).
• Transfer the bowl to your mixer and beat until the meringue becomes thick, glossy, and reaches stiff peaks. The bowl should also feel cool before adding the butter.
• Add the softened butter gradually in 3–4 additions, beating well after each addition. At some point, the buttercream may look curdled, soupy, or separated. This is completely normal. Continue beating until the frosting becomes smooth, fluffy, and silky. Finally, mix in the vanilla extract.

Assembling the Strawberry Layer Cake

• Place one cake layer on your serving plate or cake board. Spread an even layer of Swiss meringue buttercream over the surface. Next, spoon about 2 tablespoons of the cooled strawberry syrup over the buttercream, spreading it evenly without letting it run to the edges.  Repeat with the second layer. Place the final cake layer on top.
• Cover the entire cake with a thin crumb coat and refrigerate for 20 minutes. Once chilled, apply the final coat of buttercream, smoothing the sides and top using an offset spatula or cake scraper.
• Decorate however you like. I mixed some leftover compote with melted white chocolate and used it to create a dripping effect in the centre and sides of the cake.  Used plain and strawberry compote mixed Swiss meringue to pipe. Used compote, fresh strawberries, and mint leaves to further garnish.
• Slice with a warm knife for clean, neat layers.

Tips

For a Light Sponge

• Always use room-temperature eggs.
• Fold gently—don’t stir.
• Sift the dry ingredients to avoid lumps.
• Incorporate the butter mixture while it’s still warm.
• Don’t overbake, or the sponge may dry out.

While making Strawberry compote

• Avoid cooking over high heat, as the syrup may become too thick.
• Let it cool completely so it doesn’t soften the buttercream.
• Don’t discard the leftover strawberry pulp! Stir it into yogurt, oatmeal, smoothies, or spoon it over pancakes.

For Buttercream

• The bowl must be cool before adding butter.
• Butter should be softened but not greasy or melted.
• If the buttercream separates, don’t panic: it usually comes together with more mixing.
• Brief chilling often helps if your kitchen is warm.

Storage Tips

Because this cake is frosted with Swiss meringue buttercream, it’s best stored in the refrigerator.

• Refrigerator: Store the finished cake in an airtight cake container or cover it.It stays fresh for up to 4-5 days.For the best flavour and texture, let the cake sit at room temperature for 20–30 minutes before serving. This allows the buttercream to soften and become silky again.
• Room Temperature: If your kitchen is cool (below 22°C), the cake can sit out for 2–4 hours while serving.Avoid leaving it out for longer, especially during warm weather, as the buttercream will gradually soften.
• Freezer: up to 1 month. To freeze the whole cake, chill till frosting is firm, then wrap in cling film and foil. Individual slices should also be covered in cling film and foil. Place them in a freezer-safe container/zip-lock bag and store. To thaw, move the cake or slices to the fridge the night before, then bring them to room temperature before serving.

Make-Ahead Instructions

Planning? Here’s what you can prepare in advance.

Strawberry Syrup: The strawberry syrup can be made 2-3 days ahead.Store it in an airtight container in the refrigerator until you’re ready to assemble the cake.Before using, give it a quick stir.

Cake layers: Strawberry cake can be baked and wrapped in cling film a day ahead. Make sure the cake is completely cooled before covering and storing. Leave the cake 2-3 hours at room temperature before assembling.

Swiss Meringue Buttercream: You can also prepare buttercream a day before. Just rewhip after bringing to room temp.

FAQ’s

Q. Why is my sponge cake dense instead of fluffy?

The most common reason is losing too much air while folding in the flour or butter mixture. Fold gently and stop mixing as soon as everything is combined.

Q. Why did my sponge sink after baking?

This can happen if the batter was overmixed, the oven door was opened too early, or the cake was slightly underbaked. Bake until a skewer inserted into the centre comes out clean.

Q. My Swiss meringue buttercream looks curdled. What should I do?

This is completely normal. Keep beating. If that doesn’t solve the issue, chill the bowl for 5–10 minutes, then continue beating until the buttercream becomes smooth and fluffy again.

Q. Why is my buttercream too soft?

Your butter or kitchen may simply be too warm. Refrigerate the bowl briefly, then continue whipping until the frosting firms up.

Q. Can I make this cake a day ahead?

Yes! In fact, many people find that the flavours develop even more after resting overnight in the refrigerator. Just bring it to room temperature for about 20–30 minutes before serving.

Q. Can I use store-bought strawberry jam instead of homemade syrup?

Yes, but homemade strawberry syrup gives a fresher, brighter strawberry flavour and isn’t quite as sweet.

Q. Why do I need to reduce the strawberry purée?

Fresh strawberries contain a lot of water. Reducing the purée concentrates the flavour while removing excess moisture, allowing you to add strawberry flavour without affecting the sponge’s texture.

Q. Can I decorate the cake differently?

Absolutely! Fresh berries, white chocolate, edible flowers, freeze-dried strawberries, colourful sprinkles, or simple buttercream swirls all work beautifully. Feel free to make it your own.

Q. Can I use American buttercream instead?

Yes, but the cake will be noticeably sweeter. Swiss meringue buttercream is much lighter, silkier, and allows the fresh strawberry flavour to stand out

Q. Can I use another fruit?

While this recipe is designed for strawberries, raspberries or mixed berries can also be cooked into a similar syrup. Keep in mind that they may produce a slightly tangier flavour and may require adjusting the sugar to taste.

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