Anna Louise If you asked me to name the single most universally beloved flavour combination in British baking, chocolate and orange would be right at the top of the list. There is something about the pairing that feels both indulgent and bright at the same time — the deep bitterness of dark chocolate lifted and sharpened by the fragrance of fresh orange zest. Together they are simply magnificent.
Mary Berry’s chocolate orange cake takes that combination and does it properly. This is not a cake that whispers of orange. It does not hint at chocolate. It commits to both completely — a deeply rich, moist chocolate sponge fragrant with fresh orange zest, layered and covered with a silky chocolate orange ganache that sets to the most beautiful, glossy finish. It is the kind of cake that makes a room go quiet.
This is the cake I make for birthdays. For Christmas. For any occasion that deserves something genuinely spectacular. And the wonderful thing is that despite looking and tasting like something from a professional patisserie, it is completely achievable for any home baker who follows the steps carefully.
If you have been searching for the perfect Mary Berry chocolate orange cake recipe, this is the one. Let me show you exactly how to make it.
What Makes This Chocolate Orange Cake So Special?
Three things set this cake apart from other chocolate orange bakes.
Fresh orange zest throughout. Both the sponge and the ganache use freshly grated orange zest rather than orange extract or flavouring. Fresh zest gives a bright, complex citrus flavour that extract simply cannot replicate. You can taste the difference immediately.
Cocoa powder and melted chocolate in the sponge. Using both gives you a more complex, layered chocolate flavour than either alone. The cocoa provides depth and slight bitterness; the melted chocolate adds richness and a fudgy quality to the crumb.
A proper ganache rather than buttercream. Chocolate orange ganache — made from dark chocolate, double cream, and orange zest — sets to a beautifully glossy, slightly firm finish that looks spectacular and tastes even better. It is richer and more sophisticated than buttercream and lifts the whole cake into something genuinely special.
Ingredients for Mary Berry Chocolate Orange Cake
Use the best dark chocolate you can afford for this recipe — it makes a real difference to the finished flavour. I use a chocolate with 70% cocoa solids.
For the Chocolate Orange Sponge
- 200g unsalted butter, softened
- 200g caster sugar
- 3 large eggs, at room temperature
- 150g self-raising flour, sifted
- 50g good-quality cocoa powder, sifted
- 1 tsp baking powder
- 100g dark chocolate (70% cocoa solids), melted and cooled slightly
- Finely grated zest of 2 large unwaxed oranges
- 2 tbsp fresh orange juice
- 1 tsp vanilla extract
- 3 tbsp whole milk
For the Chocolate Orange Ganache
- 300g dark chocolate (70% cocoa solids), finely chopped
- 300ml double cream
- Finely grated zest of 1 large unwaxed orange
- 25g unsalted butter, at room temperature
- 1 tbsp golden syrup (for extra gloss)
To Decorate
- Candied orange slices or fresh orange zest curls
- A light dusting of cocoa powder
- Optional: gold leaf or edible gold dust for a truly spectacular finish
- Optional: segments of Terry’s Chocolate Orange, for a playful British touch
How to Make Mary Berry Chocolate Orange Cake — Step by Step
Step 1 — Melt the Chocolate First
Break the dark chocolate for the sponge into pieces and place in a heatproof bowl set over a pan of barely simmering water. Make sure the bottom of the bowl does not touch the water.
Stir occasionally until just melted, then remove from the heat and set aside to cool slightly. You do not want to add hot melted chocolate directly to your batter — give it five to ten minutes to cool to room temperature.
Step 2 — Preheat and Prepare
Preheat your oven to 180°C / 160°C fan / Gas 4. Grease two 20cm round sandwich tins and line the bases and sides with baking parchment.
Step 3 — Cream the Butter and Sugar
Beat the softened butter and caster sugar together with an electric hand whisk for four to five minutes until pale, light, and very fluffy. This is particularly important in a chocolate cake — the creaming step introduces air into the batter that lightens what might otherwise be a quite heavy sponge.
Step 4 — Add the Eggs
Add the eggs one at a time, beating well after each addition. After the final egg, beat in the vanilla extract and orange zest.
Step 5 — Add the Melted Chocolate
Pour the cooled melted chocolate into the bowl and fold it through the mixture with a spatula until completely incorporated. The batter will look gloriously dark and chocolatey at this point.
Step 6 — Fold in the Dry Ingredients
Sift the self-raising flour, cocoa powder, and baking powder into the bowl. Add the orange juice and milk. Fold gently until just combined — do not overmix. The batter should be smooth, thick, and deeply dark.
Step 7 — Bake
Divide the batter equally between the two prepared tins. Smooth the tops and bake on the middle shelf for 25 to 30 minutes until a skewer inserted into the centre comes out clean. The sponges will feel firm to the touch and have pulled away very slightly from the sides of the tin.
Leave to cool in the tins for 10 minutes, then turn out onto a wire rack to cool completely. The sponges must be completely cold before you apply the ganache.
Step 8 — Make the Chocolate Orange Ganache
Place the finely chopped dark chocolate in a large heatproof bowl. Heat the double cream in a small saucepan over a medium heat until it just begins to simmer — you will see small bubbles appearing around the edges. Do not let it boil.
Pour the hot cream over the chopped chocolate. Add the orange zest and golden syrup. Leave to stand for two minutes without stirring — this allows the heat of the cream to melt the chocolate evenly.
Then stir gently from the centre outwards in slow, steady circles until you have a smooth, glossy ganache. Add the butter and stir until melted and incorporated — this gives the ganache an extra shine and a slightly softer set.
Leave the ganache to cool at room temperature, stirring occasionally, until it thickens to a spreadable consistency. This usually takes 30 to 45 minutes. Do not put it in the fridge to speed this up — it can set unevenly and become difficult to spread.
Step 9 — Assemble and Decorate
Place one completely cooled sponge on your serving plate or cake stand. Spread a generous layer of ganache over the top. Place the second sponge on top, pressing down very gently.
Pour the remaining ganache over the top of the cake and use a palette knife to spread it smoothly over the top and down the sides — or let it drip naturally down the sides for a more dramatic effect. Either way, it looks spectacular.
Decorate with candied orange slices, curls of fresh orange zest, and a very light dusting of cocoa powder. If you want to go all out for a special occasion, a few pieces of edible gold leaf or some segments of Terry’s Chocolate Orange arranged around the top are a wonderful finishing touch.
Leave the ganache to set at room temperature for at least 30 minutes before slicing.
My Top Tips for the Perfect Chocolate Orange Cake
Use 70% dark chocolate. Milk chocolate is too sweet for this recipe and the flavour lacks the depth and slight bitterness that makes chocolate orange so compelling. 70% cocoa solids gives you the perfect balance — rich, complex, and deeply chocolatey without being harsh.
Cool the melted chocolate before adding it to the batter. Hot chocolate added to butter and eggs can start to melt the butter and scramble the eggs. Give it ten minutes to cool to room temperature — it should feel warm but not hot to the touch.
Do not rush the ganache. The ganache needs time to cool and thicken to a spreadable consistency at room temperature. Chilling it speeds up the process but results in an uneven set that is difficult to work with. Be patient — 30 to 45 minutes at room temperature is worth the wait.
Chop the chocolate for the ganache finely. The finer the chocolate is chopped, the more surface area there is for the hot cream to melt it. Large chunks of chocolate may not melt completely before the cream cools, leaving you with lumps in the ganache. Take a few extra minutes to chop thoroughly.
Use a warm palette knife to spread the ganache. Run your palette knife under very hot water, wipe dry, and use immediately. The warmth helps the ganache spread smoothly and gives you a much cleaner, more professional finish.
Let the finished cake come to room temperature before serving. Ganache firms up significantly when cold. A cake stored in the fridge should be taken out at least 45 minutes before serving — the ganache will soften back to its ideal texture and the chocolate orange flavour will be far more pronounced at room temperature.
Serving Suggestions
This is a celebration cake in every sense — serve it as the centrepiece at a birthday, at Christmas, or at any occasion that deserves something genuinely special. A thin slice is rich enough to satisfy completely. It is wonderful with a small spoonful of crème fraîche or lightly whipped cream on the side to cut through the richness. A glass of dessert wine or a small espresso alongside is a very grown-up pleasure.
How to Store Mary Berry Chocolate Orange Cake
At room temperature: Store in an airtight container in a cool kitchen for up to 2 days. The ganache will remain glossy and the sponge will stay moist.
In the fridge: Store in an airtight container for up to 5 days. Always bring to room temperature for at least 45 minutes before serving — cold ganache loses its gloss and beautiful texture.
In the freezer: Freeze the unfrosted sponge layers for up to 3 months, wrapped tightly in cling film and foil. Make the ganache fresh when ready to assemble.
Mary Berry Chocolate Orange Cake
Ingredients
Method
- Melt dark chocolate for sponge in a bowl over barely simmering water. Cool to room temperature.
- Preheat oven to 180°C / 160°C fan / Gas 4. Grease and line two 20cm sandwich tins.
- Beat butter and caster sugar for 4–5 minutes until pale and fluffy.
- Add eggs one at a time, beating well. Beat in vanilla and orange zest.
- Fold in cooled melted chocolate until fully incorporated.
- Sift in flour, cocoa, and baking powder. Add orange juice and milk. Fold gently until just combined.
- Divide between tins. Bake 25–30 minutes until skewer comes out clean. Cool completely on a wire rack.
- For ganache: pour hot cream over finely chopped chocolate. Add orange zest and golden syrup. Stand 2 minutes then stir from centre outwards until smooth. Add butter and stir until glossy. Cool at room temperature until spreadable, about 30–45 minutes.
- Sandwich sponges with ganache. Pour remaining ganache over top and spread over sides. Decorate with orange slices and a dusting of cocoa. Leave to set 30 minutes before slicing.
Notes
Frequently Asked Questions About Mary Berry Chocolate Orange Cake
Can I use milk chocolate instead of dark chocolate?
You can, but the result will be significantly sweeter and less complex in flavour. The combination of milk chocolate and orange can taste rather one-dimensional. If you prefer a milder chocolate flavour, use a dark chocolate with 50–55% cocoa solids as a compromise — it is less bitter than 70% but still has enough depth to balance the orange beautifully.
My ganache has split and looks grainy — how do I fix it?
A split ganache can usually be rescued. Add a tablespoon of warm cream and stir gently — the extra fat and warmth often brings it back together. Alternatively, transfer the ganache to a food processor and blitz briefly — the friction can smooth it out. Prevention is better than cure: always pour the cream over the chocolate rather than the other way around, and stir from the centre outwards in slow circles.
Can I make this cake without the ganache?
Yes — an orange buttercream works beautifully with this chocolate sponge if you prefer. Use the orange buttercream recipe from the orange cake post on this site. It gives a lighter, brighter finish that is equally delicious.
Can I add orange liqueur to the ganache?
Yes — a tablespoon of Cointreau or Grand Marnier stirred into the ganache after it has come together adds a wonderful depth of flavour. Use it in place of one tablespoon of the cream.
Why did my chocolate sponge turn out dry?
Usually overbaking or too much flour. Chocolate sponges can dry out quickly if left in the oven even a few minutes too long. Always check at the 25-minute mark and remove the moment the skewer comes out clean.
Also make sure you measure your flour accurately — scooping directly from the bag compacts the flour and gives you more than the recipe intends.
Can I make this as a showstopping three-layer cake?
Absolutely — simply make one and a half times the sponge recipe and divide between three 20cm tins, reducing the bake time slightly. Make one and a half times the ganache as well. Three layers of chocolate orange sponge with ganache between each one is spectacular for a celebration.
