Mini Chocolate Cakes!
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These mini chocolate sponge cakes are soft, light and filled with rich chocolate buttercream, making them the perfect bite-sized version of a classic chocolate cake. They’re popular for good reason… easy to serve, easy to portion, and just indulgent enough without being overwhelming.
Why mini chocolate sponge cakes are so popular
After making and posting my mini Victoria sponge cakes the other week, I knew I had to post the chocolate version. Mini chocolate sponge cakes work so well because they take a familiar bake and turn it into something more controlled and consistent. The smaller size means you get a higher sponge-to-filling ratio, which creates a better balance of texture in every bite.
They also remove the need for slicing a larger cake, which makes them ideal for gatherings where presentation matters. Each cake is individually finished, so they naturally feel more polished even though the method is very simple.
Chocolate also behaves differently in smaller sponges. It needs enough structure to stay soft without collapsing, which is why the sponge itself has to be carefully balanced rather than overly rich or heavy.
Ingredients and swaps
Each ingredient plays a specific role in creating a light chocolate sponge and stable buttercream.
- Unsalted butter – Adds flavour and structure. Used in both the sponge and buttercream but must be fully softened for proper aeration.
- Light brown sugar – Helps create a deep and rich flavour to enhance the chocolate and cocoa added later in the bake.
- Eggs – I usually use medium eggs for most of my recipes so I use four, however, this recipe requires 3x large eggs if that is what you have
- Self-raising flour – Provides lift and stability, swap with plain flour plus baking powder if self-raising isn’t available.
- Cocoa powder – Good quality cocoa powder makes all the difference when enhancing that chocolate flavour throughout the mixture.
- Vanilla extract – Although optional, it will enhance the chocolate flavour throughout the cake.
- Icing sugar – A good quality icing sugar can save you from clouds of sugar dust, add gradually for a smooth and pipeable texture.
- Chocolate – I use milk and white chocolate to melt over the top as it adds a colour depth to the finished bake, you can use dark chocolate too if you want that deep rich flavour.
How mini chocolate sponge cakes stay soft and light
Full instructions on how to make mini chocolate sponge cakes can be found in the recipe card below.
The texture of these cakes is controlled more by timing than anything else. Because of their size, they bake quickly and continue to set as they cool, which means removing them at the right moment is key to keeping them soft.
Over-mixing the batter can reduce the air created during creaming, which directly affects how light the final sponge is. This is why the final stage of mixing should always be kept gentle and minimal.
Once baked, the structure firms up slightly as it cools. This is what allows the cakes to be sliced and filled without collapsing, which is essential for neat layering.
FAQs
This usually happens when they are slightly overbaked. Because they are small, even a few extra minutes can affect moisture.
Yes, the sponge can be baked in advance and stored before filling. This actually helps the structure settle.
A good quality unsweetened cocoa powder is best as it gives stronger flavour without affecting texture.
This is usually caused by opening the oven too early or underbaking, which prevents the structure from fully setting.
A well-greased and lined tin is essential. The smaller surface area means they release more easily when fully cooled rather than while still warm.
Mini Chocolate Cakes Recipe!
Ingredients
Mini Chocolate Cakes
- 200 g unsalted butter/baking spread
- 200 g light brown sugar
- 5 medium/large eggs
- 150 g self raising flour
- 50 g cocoa powder
- 1/2 tsp vanilla extract
Chocolate Buttercream Frosting
- 125 g unsalted butter (room temp)
- 225 g icing sugar
- 25 g cocoa powder
- 1/2 tsp vanilla extract
Decoration
- 50 g milk chocolate (melted)
- 50 g white chocolate (melted)
- Sprinkles
Instructions
- Preheat your oven to 170ºc / 160ºc fan and grease and flour, or cut mini circles and line the bottoms of your cups in your 12-hole mini sandwich tin!
- Cream together the butter/spread and light brown sugar with an electric beater until smooth – add in the beaten eggs, flour, cocoa powder and vanilla and beat again for about about 20-30 seconds on a medium speed.
- Spoon into your tin evenly per cup and bake in the oven for 16-18 minutes or until cooked through! Leave to cool on a wire rack.
- Once the cakes are cool, make the frosting – beat the softened butter until smooth – this can take a couple of minutes.
- Add in the icing sugar and cocoa powder 1/3 at a time, making sure the sugar is fully incorporated each time until moving on.
- Keep on beating the frosting but add the vanilla, and then add 1 tbsp of boiling water at a time till you reach your desired consistency. I usually use about 1-2 spoonfuls.
- Cut each cake in half carefully – using a piping bag, pipe on some buttercream for each cake and then add the other half of each mini cake on top.
- Decorate your cupcakes how you like – I melted over some white chocolate, milk chocolate and then some sprinkles.
Notes
- I use this 12-hole mini sandwich tin tin for this recipe
- These mini chocolate cakes will last in an airtight container for 2-3 days at room temperature
- These mini chocolate cakes can freeze for 3+ months
Freezing and storage
These cakes will keep well in an airtight container for 2–3 days at room temperature, where the sponge stays soft and the buttercream holds its structure. They are best enjoyed within the first day or two for the lightest texture.
The sponge layers can also be frozen before filling, which helps preserve their structure. Once defrosted, they can be assembled fresh, which keeps the final texture soft and stable. They can also freeze once decorated – I would freeze solid on a tray for stability and then transfer to a container.
Related recipes for chocolate lovers
If you enjoy these mini chocolate sponge cakes, it’s usually because you like classic chocolate flavours in simple, balanced formats. A full chocolate sponge cake offers the traditional version of this bake, while chocolate cupcakes provide a quicker and more casual alternative. Mini Victoria sponge cakes are also a great option if you prefer a lighter, vanilla-based bake instead.
Could I make the cakes and freeze them, I want to use them for Easter but I’m moving house the week I need them, I would be able to decorate them but not cook them??
Hiya, yes absolutely you can freeze these before decorating! Hope this helps! x
Hi, could I use ramekins to bake these in instead?
Made these today and swapped the vanilla extract for peppermint extract and omg they’re sensational! Thank you for the recipe x
Ooo this sounds lovely!! You are very welcome x
I just made these and they taste amazing! So glad I tried this recipe and I’m looking forward to try more! xx
Hi Jane – Great recipe!! I’m wanting to make the buttercream with Nutella – how much should I use? and I assume I wouldn’t need the cocoa powder or vanilla extract? – I’m even tempted to cover them all in Nutella buttercream to create mini cakes in that sense what portions of buttercream ingredients would you recommend? Double? thank you 🙂
Hello! Thank you so much. You could use 100g of Nutella, you can leave the cocoa powder and vanilla extract in or take them out its up to you! Double the buttercream to make sure there is enough and you can then freeze anything you have left over x