> Recipes > Chocolate

Classic chocolate layer cake with lime and chocolate mousse

by Rukmini Iyer
Classic chocolate layer cake with lime ganache

Classic chocolate layer cake with lime and chocolate mousse

PT1H15M

Why not try?

This cake – as with so many interesting dishes - came about as the result of a happy culinary accident. I had grand plans for it to become a dark, towering, glossy affair, referencing the cake that Bruce Bogtrotter manfully chomps his way through in Roald Dahl’s ‘Matilda’. But, with the chocolate, double cream and lime poised by the stove and ready to turn into a deep, rich ganache, I spotted a couple of spare eggs, and started to think – what the hay, I always make lime ganache - but what about a chocolate mousse? So, with a little trial and error, this home-made and infinitely more grown up version of a Sara Lee gateaux emerged instead. Despite its beguilingly light and airy look, you’ll find the cake quite rich – one to serve in delicate slivers rather than big wodges.

For the all-important cake base, the best way to get a good hit of chocolate flavour, without drying out the cake, is to replace a quantity of the flour with an equal weight of cocoa powder, instead of adding the cocoa powder on top of the classic flour-sugar-butter ratio. This principle works with all types of chocolate cake, so the multipurpose recipe below will work for tray-bakes, cupcakes or a layer cake.

Ingredients

Metric

Imperial

1
Preheat your oven to 180°C/gas mark 4
2
Beat the butter and sugar together until pale and fluffy, then one-by-one, beat in the eggs until smoothly incorporated
3
In another bowl, mix together the flour, cocoa powder and baking powder. Tip this into the butter and egg mixture and fold in gently until smooth. Stir through the milk, then divide the batter equally between the two cake tins
4
Transfer the tins to the oven and bake for 20–25 minutes until the tops are firm, and a skewer inserted into the middle of the cakes comes out clean. Allow the cakes to cool for 5 minutes in the tins before turning out onto a wire rack to cool down completely
5
Once cool, carefully slice the cakes in half horizontally and place the least good-looking layer on a cake plate or stand
6
For the mousse, place the chopped chocolate and lime zest in a heatproof bowl set over a pan of boiling water, making sure that the bottom of the bowl doesn’t touch the water
7
Place on a low heat and stir constantly until the chocolate is melted. Take the bowl off the heat and allow the chocolate to cool down for a few minutes. Meanwhile, whisk the double cream with an electric whisk until it forms soft peaks
8
Beat the two egg yolks into the chocolate – don’t panic if it looks like it has seized into an unmanageable lump – once you start incorporating the cream, it’ll settle down
9
Take two large tablespoons of the whipped cream and beat them thoroughly into the chocolate and egg mixture to lighten it, before gently folding through the rest of the whipped cream
10
Working as quickly as you can, spread a thick layer of mousse onto the first layer of cooled cake, making sure not to spread the mousse quite to the sides. Place another layer of cake on top, and press down gently, then repeat until you’ve got four layers of cake and four layers of mousse, with one as the topping
11
If not eating immediately, refrigerate the cake until needed, and eat within two days
image
 

Want more recipes like this delivered to your inbox?

Sign up to our newsletter now and we'll send you a hand-picked round-up of the best seasonal recipes and features from the best chefs each week.

Thanks for subscribing

We'll only contact you around once per week with the best recipes and features. You can unsubscribe at any time.

 

Comments ()

Classic chocolate layer cake with lime and chocolate mousse

 
Order by
...   ...

(Editing)

>

This comment was edited

Please enter text

Comments must be less than characters

This comment has been deleted

Report this comment

Please state your report in the space below

Please enter text

Reports must be less than 750 characters

loading

>

Please enter text

Comments must be less than characters

(Editing)

>

This comment was edited

Please enter text

Comments must be less than characters

This comment has been deleted

Report this comment

Please state your report in the space below

Please enter text

Reports must be less than 750 characters

loading

>

Please enter text

Comments must be less than characters

Be the first to leave a comment on this page...
...   ...