This Mary Berry Boozy Chocolate Cake is a rich and moist recipe, featuring a tender chocolate sponge infused with dark rum and ground almonds, all covered in a simple, glossy chocolate butter icing. It’s the perfect “grown-up” celebration cake, ready in about an hour, plus cooling time.
Mary Berry Boozy Chocolate Cake Ingredients
For the Cake:
- 200g (7oz) good-quality plain or dark chocolate, broken into pieces
- 100g (4oz) unsalted butter, cubed
- 3 large eggs, separated
- 100g (4oz) dark muscovado sugar
- 50ml (2fl oz) dark rum
- 75g (3oz) self-raising flour, sifted
- 50g (2oz) ground almonds
For the Icing & Glaze:
- 4 tbsp apricot jam, warmed and sieved
- 225g (8oz) good-quality plain or dark chocolate, broken into pieces
- 100g (4oz) unsalted butter, cubed
How To Make Mary Berry’s Boozy Chocolate Cake
Part 1: Make the Chocolate Rum Sponge
- Prep Oven and Tin: Preheat the oven to 180°C/160°C Fan/Gas 4. Grease a 20cm (8in) round, deep cake tin and line the base with baking paper.
- Melt Chocolate and Butter: Place the 200g of chocolate and 100g of butter in a heatproof bowl set over a pan of simmering water (make sure the bowl doesn’t touch the water). Stir gently until melted and smooth, then set aside to cool slightly.
- Mix the Batter: In a large bowl, whisk the 3 egg yolks with the dark muscovado sugar until pale and thick. Stir in the cooled chocolate mixture and the dark rum.
- Fold in Dry Ingredients: Gently fold in the sifted self-raising flour and the ground almonds until just combined.
- Fold in Egg Whites: In a separate, clean bowl, whisk the 3 egg whites until they form stiff peaks. Fold a large spoonful into the chocolate batter to loosen it, then gently fold in the remaining whites with a large metal spoon, being careful not to knock out the air.
- Bake the Cake: Pour the batter into the prepared tin and bake for about 45 minutes, or until the cake is risen and a skewer inserted into the center comes out clean. Let it cool in the tin for a few minutes before turning out onto a wire rack to cool completely.
Part 2: Ice and Assemble the Cake
- Make the Icing: To make the icing, melt the 225g of chocolate and 100g of butter together in a bowl over simmering water until smooth.
- Assemble: Once the cake is completely cool, carefully slice it in half horizontally. Spread about one-third of the chocolate icing on the bottom layer and sandwich the two halves back together.
- Glaze and Finish: Brush the warmed and sieved apricot jam all over the top and sides of the cake. This creates a seal and a glossy base for the icing. Let it set for a few minutes.
- Ice the Cake: Gently spread the remaining chocolate icing over the top and sides of the entire cake with a palette knife. Let the icing set in a cool place before serving.

Recipe Tips
- How to get a light sponge? The key is to be very gentle when folding the whisked egg whites into the batter. Use a large metal spoon and a figure-of-eight motion to keep as much air in the mixture as possible.
- Why use apricot jam? The layer of apricot jam is a classic technique that “seals” the cake, preventing crumbs from getting into the final layer of icing. It also adds a lovely gloss and a subtle fruity tang that cuts through the richness of the chocolate.
- What kind of rum is best? A dark or spiced rum works best for its deep, rich flavor. Avoid white rum, which can be a bit harsh.
- Can I make this ahead of time? Absolutely. The un-iced cake can be made a day in advance and stored in an airtight container. The fully iced cake will keep well in a cool place for 2-3 days.
What To Serve With Boozy Chocolate Cake
This rich, adult-oriented cake is a showstopper on its own. It is best served with:
- A dollop of crème fraîche or unsweetened whipped cream
- A side of fresh raspberries to cut through the richness
- A strong cup of black coffee or a small glass of the rum used in the cake
How To Store Boozy Chocolate Cake
- Room Temperature: Store the cake in an airtight container in a cool room for up to 3 days.
- Freeze: The un-iced sponge freezes beautifully. Wrap it tightly and freeze for up to 3 months. Thaw at room temperature before assembling and icing.
Mary Berry Boozy Chocolate Cake Nutrition Facts
- Calories: 550-650 kcal
- Fat: 38g
- Carbohydrates: 45g
- Protein: 8g
Nutrition information is estimated and may vary based on ingredients and cooking methods used.
FAQs
The alcohol flavour is definitely present but not overpowering; it adds a warm, rich depth to the chocolate. Most of the alcohol will cook off during baking, but the flavour remains.
Yes. You can substitute the rum in the cake batter with an equal amount of strong black coffee or orange juice for a non-alcoholic but still flavorful version.
If the icing is too runny, it just needs more time to cool and thicken. If it becomes too stiff, you can gently warm it for a few seconds over the pan of hot water, stirring until it reaches a spreadable consistency again.
Try More Recipes:
- Mary Berry Chocolate Log Cake Recipe
- Mary Berry Chocolate Cake with White Chocolate Icing Recipe
- Mary Berry Chocolate Buttercream Cake Recipe

Mary Berry Boozy Chocolate Cake Recipe
Description
A rich, moist, and deeply chocolatey cake with a sophisticated warmth from dark rum and a tender crumb from ground almonds, all covered in a simple, glossy chocolate icing.
Ingredients
Instructions
- Sponge: Preheat oven to 180°C/160°C Fan. Grease and line a 20cm (8in) round tin. Melt 200g chocolate and 100g butter; cool slightly. Whisk egg yolks and sugar until pale, then stir in the chocolate mixture and rum. Fold in the flour and almonds. Whisk egg whites to stiff peaks and gently fold them into the batter. Bake for 45 mins. Cool completely.
- Icing: Melt 225g chocolate and 100g butter together until smooth.
- Assemble: Slice the cooled cake in half horizontally. Sandwich the layers with about one-third of the icing.
- Glaze & Finish: Brush the outside of the cake with warmed, sieved apricot jam. Let it set.
- Cover the top and sides of the cake with the remaining chocolate icing. Let it set in a cool place.
Notes
- This cake is wonderfully moist thanks to the ground almonds and muscovado sugar.
- Be very gentle when folding in the egg whites to keep the sponge light.
- The apricot jam glaze is a key step for a smooth, professional finish.
- This is a perfect make-ahead dessert for a special occasion dinner party.