A Slice of Celebration
Every year, I love baking myself a birthday cake — something that feels comforting, special, and full of flavour. This year, I made a Coffee Sponge Cake with Walnut Praline, and it quickly became one of my favourites. The combination of coffee and walnuts is simply irresistible — rich, nutty, and deeply satisfying.
If you’ve been following me for a while, you’ll know how much I love my coffee — and coffee and walnut are always at the top of my list. I paired the sponge with a coffee mascarpone frosting, which brings together two elements I adore: the aroma of coffee and the light, mousse-like texture of mascarpone. It’s smooth, airy, and perfectly complements the tender sponge. The walnut praline adds a lovely crunch and a touch of caramel that makes the cake hard to stop eating — one slice easily turns into another! Decorated in a simple, understated way, it looks elegant yet remains all about the flavour.
The Inspiration
This cake was inspired by one of my favourite chefs, bakers, and authors — Nigella Lawson. Her book How to Be a Domestic Goddess has been a big part of my baking journey, reminding me that baking is as much about joy and comfort as it is about recipes. I’ve always admired how Nigella makes home baking feel warm and inviting — celebrating imperfection and pleasure in equal measure.
Her Victoria Sponge Cake recipe, a classic that never goes out of style, became the base for my own coffee version. I wanted to take something timeless and give it a personal twist — turning it into a cake that reflects both nostalgia and who I am as a baker today.
Why You’ll Love this Recipe
- Rich coffee flavour: The sponge is infused with coffee for a deep, aromatic taste that coffee lovers will adore.
- Crunchy walnut praline: Adds texture and a touch of caramel sweetness that pairs perfectly with the soft cake.
- Light and tender sponge: A beautifully soft coffee walnut cake that stays moist and full of flavour.
- Coffee mascarpone frosting: Smooth, mousse-like, and lightly sweetened to balance the flavours.
- Simple yet elegant look: Easy to decorate while still looking sophisticated enough for any celebration.
- Inspired by a classic: A modern twist on Nigella Lawson’s Victoria sponge — timeless, comforting, and delicious.
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NESCAFÉ Gold Blend Signature Instant Coffee
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Ingredients in this Coffee Sponge Cake Recipe
At a glance: Here is a quick snapshot of what ingredients are in this recipe. Please see the recipe card below for specific quantities.
- Unsalted butter – adds richness, flavour, and moisture to the cake. Using unsalted butter lets you control the overall salt balance.
- Caster sugar – sweetens the cake while helping to create a light, tender crumb by trapping air during creaming.
- Vanilla extract – enhances the overall flavour and adds a warm, aromatic note that complements the coffee.
- Eggs – provide structure, stability, and richness, helping the cake rise and hold its soft, sponge-like texture.
- All-purpose flour – forms the base of the cake, giving it body and structure.
- Cornflour – aka cornstarch, softens the texture by reducing the protein content, resulting in a finer and lighter crumb.
- Baking powder – gives the sponge lift and ensures it rises evenly in the oven.
- Milk – adds moisture to the batter and helps create a smooth, silky consistency.
- Salt – balances the sweetness and brings out the flavours of coffee and vanilla.
- Instant coffee powder – the star ingredient that infuses the sponge with a rich, aromatic coffee flavour. Be sure to use a good-quality or trusted brand — my all-time favourite is NESCAFÉ Gold Blend Signature Instant Coffee, which truly makes the cake shine.
How I Made It My Own
Nigella’s Victoria sponge recipe is beautifully simple and endlessly adaptable, but I made a couple of small tweaks to suit my taste.
Reduced the Sugar
Traditionally, a classic sponge cake uses equal amounts of butter, sugar, flour, and eggs. But I’ve always found that a bit too sweet for my liking, so I reduced the sugar by about 50 g to let the coffee flavour stand out more. The result is still beautifully balanced and moist, with a deeper coffee note that I love. But if you have a sweet tooth, feel free to stick with the original 225 g of sugar — it’s all about personal taste.
Added More Coffee
Let’s talk about coffee — it’s the star of this cake, after all! Coffee is very personal, so find a brand you love and trust. I always recommend using a good-quality instant coffee, and my go-to is NESCAFÉ Gold Blend Signature Instant Coffee, because the flavour of the cake truly depends on it. And if you’ve been following me, you know how much I love my coffee. So, I added an extra tablespoon for a stronger, more pronounced flavour — it makes the cake even more irresistible!
Frosting
I love mascarpone — it’s light, smooth, and silky, almost like a mousse. Instead of the traditional buttercream, I went with a coffee mascarpone frosting for this cake. It gives the sponge a modern touch while pairing beautifully with the coffee flavour. If you haven’t tried mascarpone frosting before, I highly recommend it — it’s elegant, less heavy, and absolutely delicious. You can also try my Chocolate Mascarpone Frosting — it’s perfect for cakes, cupcakes, or even as a dollop on your favourite desserts.
How to Minimise Cake Domes
If you often end up with cakes that have a huge dome on top, level baking belts are a simple trick that can really help! They don’t make the cakes perfectly flat, but they do help them rise much more evenly — which means less trimming and more even layers in the end.
Here’s how to use them:
- Soak the belts in cold water until completely wet.
- Squeeze out the excess water so they’re damp but not dripping.
- Wrap them around your cake pans and secure them tightly.
- Bake as usual. The damp belts keep the edges cooler, helping the cakes rise more evenly instead of forming a tall dome in the middle.
- As you can see, the cake layers don’t have huge domes — thanks to the level baking belts.
- To achieve a completely flat finish, I like to trim off the small dome for a clean, professional look. However, it’s totally fine to leave them as they are if you prefer a more rustic finish.
- Because these cake layers were baked so evenly, stacking them was smooth and effortless — no wobbling or uneven layers to worry about.
- Since each layer just only has a slight dome, I’m left with relatively thick, even layers — which I love! It gives the final cake a nice balance of thicker sponge and thinner frosting, just the way I like it.
I find these belts help a lot, especially when baking a small cake like this 6-inch one. You get thicker, more even layers to stack — instead of trimming off a huge dome and ending up with thinner layers (and more waste). I highly recommend giving these level baking belts a try — it’s such a simple step, but it makes a huge difference!
Tips for Making the Best Coffee Sponge Cake
- Use room temperature ingredients: Butter and eggs should all be at room temperature so they combine smoothly and create a light, even batter.
- Cream butter and sugar well: Take your time with this step — beating until pale and fluffy helps incorporate air, which gives the sponge its soft texture.
- Dissolve the coffee properly: Mix the instant coffee powder with the milk before adding it to the batter. This ensures the coffee flavour is evenly distributed without any graininess.
- Don’t overmix the batter: Once you add the dry ingredients, mix just until everything is combined. Overmixing can make the sponge dense instead of light and fluffy.
- Check your baking powder: Make sure it’s fresh — expired baking powder can cause the cake to rise unevenly or not enough.
- Bake immediately: As soon as the batter is ready, pour it into the pan and bake right away to get the best rise and texture.
- Test for doneness: The cake is ready when a skewer inserted in the centre comes out clean and the top springs back lightly to the touch.
- Let it cool completely before frosting: A cooled sponge will hold the coffee mascarpone frosting beautifully without melting or sliding off.
How to Serve the Coffee Sponge Cake
- Serve at room temperature: The coffee and mascarpone flavours are more pronounced and balanced when the cake isn’t chilled.
- Add extra walnut praline on top: It gives a lovely crunch and adds a touch of elegance to each slice.
- Pair with coffee: A freshly brewed cup of coffee or a cappuccino makes the perfect companion to this cake.
- Or serve with tea: For a lighter pairing, try black tea or Earl Grey — they balance the richness beautifully.
- Ideal for any occasion: Whether it’s a birthday, an afternoon treat, or a special gathering, this cake always feels celebratory.
How to Store the Coffee Sponge Cake
- Refrigerate for freshness: Because of the mascarpone frosting, store the cake in the fridge to keep it fresh.
- Cover it well: Place it in an airtight container or cover it with a cake dome to prevent it from drying out or absorbing fridge odours.
- Bring to room temperature before serving: Take the cake out of the fridge about 30 minutes before serving so the sponge softens and the frosting turns creamy again.
- Best enjoyed within 3 days: The texture and flavour are at their best during the first few days after baking.
- Freezing option: If you want to make it ahead, freeze the unfrosted sponge layers (well wrapped) for up to a month. Thaw completely before frosting and decorating.
Frequently Asked Questions
Yes, you can! Instant espresso gives a stronger, more intense coffee flavour. If you prefer a milder taste, stick with instant coffee powder.
Absolutely. You can bake the sponge a day in advance, wrap it well once cooled, and store it at room temperature. Frost and decorate it on the day you plan to serve.
Pecans, hazelnuts, or almonds work beautifully too.
Add an extra teaspoon of instant coffee powder or use a small amount of instant espresso. Make sure to dissolve it properly before mixing it into the batter.
Yes — the sponge and frosting are delicious on their own. The walnut praline just adds an extra crunch and caramel sweetness.
Yes — while the coffee mascarpone frosting is light and creamy, you can also use coffee buttercream or coffee whipped cream if you prefer.
More Coffee Bakes You Might Like
Tried this Recipe
Let me know if you give this recipe a go – I absolutely love seeing your creations! Tag me on Instagram @bakabeecom and be sure to leave me a comment / ⭐️⭐️⭐️⭐️⭐️ rating below so I can cheer you on!
Coffee Sponge Cake with Walnut Praline
- Prep Time: 30 mins
- Cook Time: 22 mins
- Total Time: 52 mins
- Yield: 6-inch 3-layered cake 1x
- Category: Cakes, Layer Cake
- Method: Bake
- Cuisine: Western
Description
This coffee sponge cake combines soft, aromatic layers with a light coffee mascarpone frosting and a caramelised walnut praline topping — simple, elegant, and full of flavour.
Ingredients
For the Cake
- 225 g unsalted butter, softened
- 175 g caster sugar
- 1 tsp vanilla extract
- 4 large eggs
- 200 g all purpose flour
- 25 g cornflour
- 1 1/2 tsp baking powder
- 42 ml milk
- 1/2 tsp salt
- 2 tbsp instant coffee powder
For the Coffee Mascarpone Frosting
- 250 g mascarpone cheese, chilled
- 125 g icing sugar, sifted
- 1 tsp vanilla extract
- 300 g double cream, chilled
- 2 tbsp instant coffee powder
- 1/4 tsp salt
For the Walnut Praline
- 125 g golden caster sugar
- 50 g walnuts, chopped
- A pinch of sea salt flake
Instructions
To Make the Cake
- Preheat the oven to 180°C fan (350°F). Line three 6-inch round baking pans with parchment paper.
- In a heatproof bowl, microwave the milk for 20 seconds, then add the instant coffee powder. Stir until fully dissolved and set aside to cool.
- In a separate bowl, sift together the flour, cornflour, baking powder, and salt. Set aside.
- In the bowl of a stand mixer fitted with a paddle attachment, cream the butter and sugar together until light and fluffy.
- Mix in the vanilla extract and the coffee mixture until combined.
- Add the eggs one at a time, beating well after each addition.
- Add the dry ingredient mix and beat until the batter is smooth and well combined, scraping down the sides of the bowl if needed.
- Divide the batter evenly among the prepared pans (about 295 g per pan, total 886 g).
- For an even, flat top, wrap each pan with a damped level baking belt.
- Bake for 20–25 minutes, or until a skewer inserted in the centre comes out clean.
- Let the cakes cool in their pans for about 10 minutes, then un-mould and remove the parchment paper.
- Transfer the cakes to a wire rack and cool completely before assembling.
To Make the Coffee Mascarpone Frosting
- Mix the sifted the icing sugar and salt into a bowl and set aside.
- In a saucepan over medium heat, add the double cream, vanilla extract, and instant coffee powder. Stir until the coffee has completely dissolved.
- Pour the coffee-infused cream into a stainless steel bowl, let it cool for 5- 10 minutes , then cover, and refrigerate for about 1 hour or until fully chilled.
- Near the end of the chilling time, place the cold mascarpone cheese and the sifted icing sugar mixture into the bowl of a stand mixer fitted with a whisk attachment. Whisk until well combined.
- With the mixer running, slowly pour in the chilled coffee cream and continue whisking until soft peaks form — similar to a soft ice cream texture.
- Cover and refrigerate until ready to use.
To Make the Walnut Praline
- Roughly chop the walnuts into small pieces and set aside. Prepare a sheet pan lined with a silicone mat or parchment paper.
- Add the sugar evenly into a non-stick saucepan and heat over medium-high heat.
- As the sugar begins to melt, gently swirl the pan to help it caramelise evenly — avoid stirring at this stage. You’re looking for a deep golden amber colour.
- Once all the sugar has melted, give it a quick stir until smooth.
- Add the chopped walnuts and stir until they’re fully coated in the caramel.
- Carefully pour the mixture onto the prepared silicone mat or parchment paper. Quickly spread it out before it hardens.
- Leave it to cool completely, then break it into pieces of your desired size.
To Assemble the Cake
- Trim off the top of each layer if needed.
- Place a non-slip mat on a cake turntable. Then place the cake board on top to avoid it moving around.
- Spread a dollop of frosting in the centre of the cake board, place a layer of cake in the middle. Add two scoops of frosting onto it. I like to use an ice cream scoop. Spread across the cake layer evenly. Repeat the step of the second layer.
- Place the last cake layer on top, bottom side up to create a perfect flat surface for the top of the cake.
- To crumb coat the cake, spread a thin layer of frosting over the top and the sides, use a cake scraper to scrape off the excess. Chill the cake for 30 minutes to set.
- Transfer the remaining frosting into a piping bag.
- (Optional) Once the cake is chilled, you can transfer it from the cake board to your serving stand using two offset spatulas. Check out the video to see how I did it!
- To complete the final coating, pipe a generous amount of frosting onto the top and the sides of the cake, then smooth out the surface.
- Decorate the cake as desired, pipe rosettes, or swirl using a piping tip, or use a cake spatula to create decorative lines on the sides and top (see my video).
- Place the walnut praline pieces on top. Enjoy!
Notes
- Each egg is around 60 g without shell.
Nutrition
- Serving Size: 1 serving
- Calories: 352kcal
- Sugar: 21.8g
- Sodium: 164mg
- Fat: 18g
- Saturated Fat: 10.6g
- Trans Fat: 0g
- Carbohydrates: 42.5g
- Fiber: 0.7g
- Protein: 5.1g
- Cholesterol: 123mg
Final Thoughts
This Coffee Sponge Cake with Walnut Praline will always hold a special place in my heart — not just because it was my birthday cake, but because it brings together everything I love about baking. The rich aroma of coffee, the lightness of the sponge, the crunch of the praline, and the silky coffee mascarpone frosting all come together in perfect harmony.
It’s a cake that feels both nostalgic and elevated — inspired by Nigella Lawson’s classic Victoria sponge, yet made my own through the flavours I adore. Whether you’re baking it to celebrate something special or simply to treat yourself, I hope this cake brings you as much joy as it brought me.
Thanks for joining me in the kitchen today. Hope you’ll love this! Enjoy and keep baking! 💛
