Blueberry Tiramisu Cake: An Elegant No-Bake Dessert with a Fruity Twist
Step into the world of refined, no-bake desserts with this Blueberry Tiramisu Cake, a fresh and elegant twist on the classic Italian favourite. Instead of coffee and cocoa, this version celebrates bright blueberry flavour, layering sponge fingers soaked in a fragrant blueberry syrup with a light mascarpone cream and a glossy blueberry sauce. The end result is soft, creamy, and beautifully sliceable, with a fruit-forward finish that feels both indulgent and refreshingly balanced.
If you enjoy fruity, no-bake desserts, make sure to try my Mandarin Panna Cotta for a lighter set dessert, or Mandarin Tiramisu for another vibrant flavour variation that keeps the classic tiramisu feel while switching up the fruit.
Scroll down or tap “Jump to Recipe” to go straight to the printable recipe card with exact measurements, then follow the step-by-step instructions to assemble this eggless, no-bake showstopper.
Simple Ingredients, Big Flavours
What makes this blueberry tiramisu cake so special is the way simple, familiar ingredients are layered and treated with care to create a dessert that feels elegant and impressive, yet remains completely approachable. Each element plays an important role in building flavour, texture, and structure.
- Sponge fingers: These form the base of the cake, soaking up the blueberry syrup while keeping enough structure to create clean, defined layers once chilled.
- Blueberries: The star ingredient, used for the syrup, the sauce, and the final decoration, bringing natural sweetness, gentle acidity, and vibrant colour throughout the cake.
- Mascarpone and double cream: This classic combination creates a light yet rich cream without using eggs, giving the cake its smooth, velvety texture.
- Sugar and vanilla: Used sparingly to enhance the blueberries and round out the flavours without overpowering the freshness of the fruit.
- Cornflour (cornstarch): A small amount thickens the blueberry sauce just enough to hold its shape between layers while keeping a soft, glossy finish.
And if you love blueberry-based desserts, make sure to check out my Blueberry Ricotta Tart, Frozen Blueberry Ricotta Pops, and Mini Blueberry Filo Pies for more fruity inspiration.
How to Make Blueberry Tiramisu Cake
Although this blueberry tiramisu cake looks impressive once assembled, the process itself is very straightforward. The key is breaking it down into simple components: syrup, sauce, cream, and assembly. Each step takes only a short amount of time, and there is no baking involved.
Preparing the Blueberry Syrup
Start by making the blueberry syrup that will be used to soak the sponge fingers. Blend the blueberries using a food processor or immersion blender until completely smooth. Transfer the purée to a small saucepan and add the water, sugar, and lemon juice.
Place the saucepan over medium heat and bring the mixture just to a boil. As soon as it starts bubbling, remove it from the heat. This brief heating intensifies the blueberry flavour while keeping the colour bright and fresh. Strain the syrup through a fine sieve to remove the skins and seeds, then set it aside to cool completely. It is important that the syrup is cold before assembling the cake, as warm liquid can soften the sponge fingers too much.
Making the Blueberry Sauce
Next, prepare the blueberry sauce that will be layered through the cake and used as the topping. Add the blueberries, sugar, cornflour (cornstarch), and vanilla extract to a small saucepan. Heat gently over medium-low heat, stirring constantly. As the blueberries soften, gently crush them with a spoon so the cornflour blends smoothly without forming lumps. Once everything is well combined, add the water and continue cooking, stirring continuously, until the mixture comes to a boil and thickens, which takes about 2 to 3 minutes. If you prefer a smoother sauce, use a potato masher at the end to fully break down the blueberries. Remove from the heat and allow the sauce to cool to room temperature. Transfer it to a piping bag and refrigerate until chilled, which will make layering much easier.
Preparing the Mascarpone Cream
To make the cream, place the icing sugar, double cream, mascarpone, and vanilla extract into a large bowl. Using a hand mixer, whisk on medium speed until the mixture becomes firm, smooth, and holds its shape. This usually takes about 2 to 3 minutes. Take care not to overwhip the cream, as mascarpone can split if beaten too aggressively. Once ready, transfer the cream to a piping bag and store it in the fridge until you are ready to assemble the cake.
Assembling the Cake
Place a 16 cm (6-inch) cake ring onto the serving plate you plan to use. Line the inside of the ring with a cake collar to make removal easy once the cake is set. Quickly dip each sponge finger into the cooled blueberry syrup. Do not soak them for too long, as they will continue to soften while chilling.
Arrange the dipped sponge fingers in a single, even layer across the base of the cake ring.
Pipe roughly one third of the mascarpone cream evenly over the sponge layer.
Then pipe a thin layer of blueberry sauce over the centre of the cream.
Add a second layer of syrup-soaked sponge fingers, followed by about half of the remaining cream and another thin layer of blueberry sauce. Finish with a final layer of sponge fingers, then cover evenly with the remaining cream, reserving a small amount for the rim. Use a spatula to smooth the surface.
Pipe the reserved cream around the edges of the cake to create a border. This helps keep the final layer of blueberry sauce neatly contained in the centre. Pipe the remaining blueberry sauce inside the rim and gently spread it out.
Cover the cake with cling film and refrigerate for at least 4 hours. For the best texture and cleanest slices, chilling overnight is recommended.
Decorating and Serving
Once fully chilled, carefully remove the cake ring and peel away the cake collar. Decorate the sides by attaching sponge fingers vertically around the cake. This can be done simply by pressing them gently against the cream. If desired, tie a ribbon around the cake for a polished finish.
Finish by placing fresh blueberries in the centre on top of the sauce and garnish with mint leaves. Slice and serve straight from the fridge.
Scroll down for the full printable recipe card with exact measurements.
Why We Love This Blueberry Tiramisu Cake
This blueberry tiramisu cake is everything we love in a dessert: elegant, comforting, and far easier to make than it looks. It takes the familiar structure of a classic tiramisu and refreshes it with bright blueberry flavour, making it feel modern while still deeply comforting.
One of the standout qualities of this recipe is that it is completely eggless. The mascarpone cream is light, smooth, and stable, relying on double cream rather than eggs, which makes the process simpler and more approachable. There is no tempering, no worrying about raw eggs, and no baking involved, yet the final texture is just as luxurious as a traditional tiramisu.
The layered presentation is another reason this recipe works so well. The sponge fingers soak up the blueberry syrup beautifully, softening as the cake chills while still holding their shape. The blueberry sauce adds bursts of fruit flavour between the layers, while the mascarpone cream keeps everything balanced and creamy. Each slice shows clear, defined layers, making this cake just as impressive to serve as it is satisfying to eat.
What truly sets this dessert apart is how well it fits into real-life cooking. You can prepare the components ahead of time, assemble the cake the day before serving, and let the fridge do the rest of the work. And if you enjoy fruity desserts, make sure to try my Raspberry Cottage Cheese Bars, Passion Fruit Curd Raspberry Tarts, and Cherry Cottage Cheese Ice Cream (High Protein) for more fresh, flavour-packed inspiration.
Perfect for Any Occasion
This blueberry tiramisu cake is the kind of dessert that fits effortlessly into so many moments. It works beautifully as a make-ahead dessert for dinner parties, family gatherings, or when you want something elegant on the table without spending hours in the kitchen on the day. Because it is no-bake and eggless, it is also a great option when you want a stress-free dessert that still feels special.
The cake sets entirely in the fridge, which means you can prepare it the day before and focus on enjoying your guests rather than rushing around the kitchen. The flavours develop as it chills, making it even better the next day. Much like my Berry Semolina Tart, this is a dessert that rewards planning ahead and delivers consistently beautiful results.
Its clean slices and layered look make it ideal for celebrations, while the soft texture and fruity flavour keep it comforting and approachable. Whether served as a centrepiece dessert or sliced casually after a meal, this blueberry tiramisu cake always feels like a treat.
Instagram Tutorial & More
Want to see exactly how this cake comes together? Watch our quick video tutorial on Instagram. It is a great way to build confidence before assembling the cake yourself and to see the layering process in action.
If you enjoy easy fruity desserts, you might also love:
- Passion Fruit Ricotta Dessert (Syrok)
- Pistachio Stuffed Raspberries
- Easy Apple Bakewell Tart
- Blueberry Cottage Cheese Bites (High Protein, No Refined Sugar)
Each recipe follows the same approach of simple ingredients, clear steps, and maximum flavour.
Happy cooking,
Izabella
Description
This no-bake blueberry tiramisu cake is an elegant, eggless twist on the classic dessert. Layers of sponge fingers are soaked in blueberry syrup, then paired with a light mascarpone cream and a smooth blueberry sauce. It may look a little involved at first glance, but once you break it down, each step takes only a few minutes. Before you know it, the cake is assembled and chilling in the fridge. And once it is ready, it disappears just as quickly.
Ingredients
For the base and blueberry syrup
For the mascarpone cream
For the blueberry sauce
For decoration
Instructions
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Prepare the blueberry syrup: Blend the blueberries using a food processor or immersion blender until smooth. Transfer the purée to a small saucepan and add the water, sugar, and lemon juice. Heat gently until just boiling, then remove from the heat. Strain through a sieve to remove the skins and seeds, and set aside to cool completely.
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Make the blueberry sauce: In a small saucepan, combine the blueberries, sugar, cornflour (cornstarch), and vanilla extract. Heat over medium-low heat, stirring constantly and gently crushing the blueberries so the cornflour blends smoothly without forming lumps. Once combined, add the water and continue cooking, stirring continuously, until the mixture comes to a boil and thickens, about 2 to 3 minutes. If needed, use a potato masher at the end to fully break down the blueberries and create a smoother sauce. Remove from the heat, allow to cool to room temperature, then transfer to a piping bag and refrigerate until chilled.
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Prepare the cream: Place the icing sugar, double cream, mascarpone, and vanilla extract in a large bowl. Using a hand mixer, whisk until a firm, smooth cream forms, about 2 to 3 minutes. Transfer the cream to a piping bag and refrigerate until needed.
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Assemble the cake: Place a 16 cm (6 inches) cake ring onto a serving plate. Line the inside of the ring with a cake collar for easy removal. Quickly dip each sponge finger into the cooled blueberry syrup and arrange them in a single layer over the base. Pipe roughly one third of the mascarpone cream evenly on top, then pipe a thin layer of blueberry sauce over the centre. Add a second layer of syrup-soaked sponge fingers, followed by half of the remaining cream and another thin layer of blueberry sauce. Finish with a final layer of sponge fingers, then cover evenly with the remaining cream, reserving a small amount for the rim. Smooth the surface with a spatula. Use the reserved cream to pipe a rim around the edges of the cake. This will help keep the final layer of blueberry sauce neatly in the centre. Pipe the remaining blueberry sauce into the middle and gently spread it out. Cover the cake with cling film and refrigerate for at least 4 hours, ideally overnight, until fully set.
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Decorate and serve: Carefully remove the cake ring and peel away the cake collar. Decorate the sides by attaching sponge fingers vertically around the cake and secure with a ribbon if desired. Place fresh blueberries in the centre on top of the sauce and finish with mint leaves. Slice and serve. This cake is light, creamy, and seriously addictive.
Products
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Nutrition Facts
Servings: 6 ServingCalories:670.38kcalTotal Fat:35.53gCholesterol:227.65mgSodium:236.45mgPotassium:245.19mgTotal Carbohydrate:79.44gDietary Fiber: 2.98gSugars: 35.82gProtein:11.18gVitamin A: 408.25IUVitamin C: 9.79mgCalcium: 105.93mgIron: 2.7mgVitamin D: 0.67IUVitamin E: 1.28IUVitamin K: 20.55mcgVitamin B6: 0.17mgVitamin B12: 0.62mcgPhosphorus: 191.35mgMagnesium: 21.42mgZinc: 1.2mg
Note
- If you do not have a piping bag, simply spoon and spread the cream and blueberry sauce.
- The blueberry syrup and blueberry sauce can be prepared a day in advance and stored in the fridge to speed up assembly the next day.
- If you do not have a cake collar, use a strip of baking parchment trimmed to height and line the inside of the cake ring.
- Dip the sponge fingers quickly in the syrup. They should be moist but not soggy, as they will soften further while chilling.
- Make sure the syrup and sauce are fully cooled before assembling, as warmth can loosen the mascarpone cream.
- Whisk the cream just until firm and smooth. Overwhipping can cause the mascarpone to split.
- Chill for at least 4 hours, but overnight gives the cleanest slices and best flavour.
- For a smoother blueberry sauce, mash thoroughly with a potato masher at the end of cooking.
- Frozen blueberries can be used for the syrup and sauce. Thaw first and drain any excess liquid.
- Use full-fat mascarpone for the best texture. Reduced-fat versions may result in a looser cream.
- Double cream can be substituted with heavy cream for US readers.
- Store the cake covered in the fridge for up to 3 days.
- The full cake can be assembled up to 24 hours in advance.
- This cake is not suitable for freezing, as the cream and sponge will lose their texture.
- Avoid over-soaking the sponge fingers, assembling while components are warm, or overwhipping the cream, as these are the most common causes of a soft or split cake.
