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.
Hi Jane, I am just going to make these beautiful mini cakes but I was wondering whether once they are cooked through would you recommend leaving them to cool fully in the tin or out the tin ? xx
I generally find leaving them at least 10-15 minutes is okay, and then removing! x
Made these today but used dark brown sugar by mistake, omg taste sensation, my daughter absolutely loved them. Thank you
Hi Jane,
I have recently made these mini cake and I absolutely love them! I was wondering, could these be made in a coffee version? X
Yes, add in 1tbsp of coffee into 1-2tbsp of boiling water and cool completely before adding in! If you don’t want it chocolate, remove for more flour! x
Hi Jane I’ve made both these and the Victoria’s, so yummy! How would I make these red velvet? X
I would have a look at my red velvet cupcake recipe, and use that as a base – it should easily make 10-12 (depending on your mini cake tin) x
Hi Jane love your recipes , I wanted to make some miniature cakes in lemon and was wondering if measurements would be the same as lemon and poppy seed for example. Thanks Amanda x
Have a look at my mini victoria sponge cakes, and then add lemon to those! x
These along with the mini victoria sponge cakes are so pretty. I can not wait to try these for my friends engagement party! Although i do have a question.. which nozzle did you use to pipe out the buttercream?
A small closed star nozzle x
Do these need to be kept in an airtight container in the fridge to last?
No, never keep cake in the fridge as it dries it out. Very few cakes should be in the fridge.
These look absolutely beautiful and full of chocolatey deliciousness. Congratulations on your new site. It’s clean, easy to navigate and full of your yummy recipes. X
Thank you! ☺️ x
This looks so pretty, I am excited to make this.
These look so cute and fun! I love mini desserts and mini cakes are no exception!
Hi, Jane how much mix would u recommend putting in the tin, about 3/4 s ?
Thanks
Adele
I split the mixture evenly between the 12 cakes, so whatever that is!
Jane these look adorable and so yummy! I definitely want to try making these over the next couple of weeks! Also, I didn’t realise that you have a Sweet Treats book available?! This actually makes me so happy – I can’t wait to have a look through your recipes!
Carolyn x
http://faithfullycarolyn.blogspot.co.uk/2017/09/autumnal.html