Chocolate Malt Cake Recipe

Chocolate mousse cake

  • serves 10
  • Easy

Satisfyingly smooth and indulgent, this malted chocolate mousse cake topped with crunchy salted pretzels is a perfect pudding to make for the holidays


Treat yourself to this silky chocolate mousse cake, then check out more indulgent chocolate recipes such as our chocolate mousse, ultimate chocolate fudge cake and chocolate brownies.



  • dark rum 1 tbsp, (optional)
  • salted pretzels crunched to serve


  • plain flour 50g
  • cocoa powder 2 tbsp
  • baking powder 1/4 tsp
  • bicarbonate of soba 1/4 tsp
  • light soft brown sugar 55g
  • malted milk powder (Horlicks) 2 tbsp
  • smooth biscuit spread 50g
  • vegetable oil
  • buttermilk 80ml
  • vanilla extract 1/2 tsp
  • egg 1 small


  • milk chocolate 300g, broken into chunks
  • double cream 450g


  • double cream 100ml
  • milk chocolate 100g, broken into chunks
  • unsalted butter 2 tbsp


  • Step 1

    Heat the oven to 180C/fan 160C/gas 4. Oil a 20cm spring-form tin and line the sides and base with baking paper, making sure the paper comes a little higher than the sides of the tin.

  • Step 2

    Sieve the flour, cocoa, baking powder, and bicarb into a bowl. Add the sugar, a pinch of salt and the Horlicks.

  • Step 3

    Mix the biscuit spread, 1 tbsp vegetable oil, buttermilk, vanilla and egg in a jug, then pour into the bowl. Beat well until smooth, then pour into the tin (it will only come about 2cm up the tin).

  • Step 4

    Bake for 20-25 minutes until risen and a metal skewer comes out clean when poked into the centre of the cake. Leave to cool in the tin. Brush with the rum (if using) while the sponge is just warm, then leave to cool to room temperature.


  • Step 1

    Melt the chocolate in a bowl over (but not touching) simmering water (or in a microwave in short blasts), then leave to cool. Whip the cream in a large bowl until you get soft peaks, then fold in the cooled melted chocolate very gently trying not to knock any air out.

  • Step 2

    Spoon the mousse over the cooled cake in the tin, and smooth the top. Chill for at least 4 hours until the mousse has set.


  • Step 1

    Heat the cream in a pan until hand-hot. Remove from the heat and add the chocolate and butter.

  • Step 2

    Stir until the chocolate has melted, then tip into a bowl. Leave to cool to room temperature.

  • Step 3

    When the mousse has set, pour/spread the cooled ganache over the cake and cool for another 2 hours to set, or overnight if making it the day before.


  • Step 1

    Remove from the tin, transfer to a serving plate, and gently pull away the baking paper around the sides of the cake. Use a warm knife to cut slices of the cake, and serve scattered with the pretzel pieces over the top.


To serve, dip the knife into hot water, and then dry with a tea towel before cutting into the cake. This ensures a clean cut through the cake. Repeat before slicing the next piece.

For tips on melting chocolate, search, and listen to episode #23 of the olive magazine podcast.

Discover more of our best chocolate cake recipes...

Chocolate Amaretto Almond Cake Recipe

Nutritional Information

  • Kcals 616
  • Fat 48.7g
  • Saturates 28.4g
  • Carbs 37.3g
  • Sugars 30.8g
  • Fibre 1.7g
  • Protein 6.2g
  • Salt 0.3g