Toasted marshmallow & ginger cake

Toasted marshmallow & ginger cake

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(9 ratings)

Prep: 55 mins Cook: 1 hr, 15 mins plus cooling

A challenge

Serves 8 - 10
Decorative Italian meringue masks a spicy, moist ginger cake layered with ginger buttercream- an amazing bake!

Nutrition and extra info

  • un-iced

Nutrition: per serving (10)

  • kcal549
  • fat22g
  • saturates13g
  • carbs82g
  • sugars67g
  • fibre1g
  • protein5g
  • salt1.2g


  • 100g butter, plus a little extra for greasing



    Butter is a dairy product made from separating whole milk or cream into fat and…

  • 100g dark muscovado sugar
  • 100g black treacle
  • 140g golden syrup
    Golden syrup

    Golden syrup

    goal-dun sir-rup

    Golden syrup is a translucent, golden-amber coloured, sweet syrup, which can only be produced…

  • 225g plain flour
  • 1 tsp bicarbonate of soda
    Bicarbonate of soda

    Bicarbonate of soda

    Bicarbonate of soda, or baking soda, is an alkali which is used to raise soda breads and full-…

  • 2 tsp ground ginger
  • 1 tsp ground cinnamon
  • 125ml whole milk
  • 3 medium egg yolks, whisked with a fork (save the whites for the icing)

For the ginger buttercream

  • 140g butter, softened



    Butter is a dairy product made from separating whole milk or cream into fat and…

  • 200g icing sugar
  • 4 smalls stem ginger, finely chopped, plus 1 tbsp syrup
  • ½ tsp ground ginger

For the toasted marshmallow icing

  • 3 medium egg whites
  • 175g golden caster sugar

You will also need

  • piping bag
  • large round piping nozzle
  • cook's blowtorch
  • 3 sparklers to decorate (optional)


  1. Melt the butter, sugar, treacle and syrup in a small saucepan, whisking until smooth. Set aside to cool for 10 mins. Heat oven to 160C/140C fan/gas 3. Grease and line a 2lb loaf tin with baking parchment (our tin was 22 x 7 x 7cm).

  2. In a bowl, mix the flour, bicarbonate of soda, ground ginger, cinnamon and 1⁄2 tsp salt. Pour in the warm syrup mixture and the milk, followed by the egg yolks. Whisk until you have a smooth batter. Pour into the tin and bake for 1 hr or until a skewer comes out clean. Cool in the tin for 30 mins, then slice off the top to give you a smooth surface. Flip onto a wire rack and remove the baking parchment. Leave to cool. Can now be covered with cling film and kept for up to 5 days.

  3. To make the buttercream, put the ingredients in a large bowl and mash together with a fork or spatula (this prevents the icing sugar from going everywhere). When roughly combined, blend with an electric hand whisk until smooth.

  4. Now make the marshmallow icing. Put the egg whites, sugar, 1 tbsp water and a good pinch of salt into a heatproof bowl. Place over a pan of simmering water, making sure the bowl doesn’t touch the hot water, and whisk until thick and leaving a prominent trail from the beaters – this will take about 4 mins. Remove the bowl from the heat and continue whisking for another 3 mins until cooled slightly and really stiff. Transfer half to a piping bag fitted with a large round nozzle and set aside.

  5. When ready to assemble, slice the cake lengthways into 3 even layers. On a cake stand or plate, reassemble the cake, with the largest slice on the bottom, layering with the buttercream.

  6. Using a small offset palette knife or small butter knife, cover the cake with the marshmallow icing left in the bowl. Use the palette knife to create vertical lines along the edges (see tip, left). Now use the piping bag to pipe spikes of meringue over the top of the cake. Use a cook’s blowtorch to toast the meringue to a golden brown – a few charred patches will add to the effect. Serve straight away or chill for up to 2 days, removing from the fridge 30 mins before serving. We decorated ours with sparklers.

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Comments, questions and tips

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10th Nov, 2018
Really easy to make. All the components are delicious but all together it is incredibly sweet. My husband and I both have a really sweet tooth and it was almost too much for us, you can only have a very small slice before it feels like your teeth are melting!
5th Nov, 2016
Recipe says put half the marshmallow icing into piping make spikes on the top of the cake this was way too much. I ended up having to put 3 layers of squiggles on the top to use up all the icing
5th Nov, 2015
My husband made this for me for the first time last year for my birthday. It was AMAZING and one of the best cakes I've ever had! My husband isn't the most experienced cake maker but has a basic knowledge so most people should be able to follow this fairly well. It was so good I requested it again this year. Delicious!
28th May, 2014
Made this for a work event and it got rave reviews. I added real ginger as I had some in the cupboard. I can't get stem ginger in Malaysia so I spread a layer of warm rhubarb and ginger jam on each layer and mixed some through the buttercream. It was stunning!
sllyst's picture
28th Dec, 2013
This was fairly straightforward to make but very sweet and i have a sweet tooth.
17th Nov, 2013
I really enjoyed making this cake and it tasted amazing, so much so I've made it twice- first time I layered the layers up in the wrong order (so the widest layer was in the middle whoops!!!) but it still looked amazing!!
15th Nov, 2013
Very moist and gingery. Love the icing, looked really special
2nd Feb, 2017
Can you prepare this the day before?
6th Nov, 2017
The cake itself will be even better the next day, you could make that and finish on the day.
goodfoodteam's picture
7th Feb, 2017
Thanks for your question. You can chill for the completed cake for up to 2 days, removing from the fridge 30 mins before serving.
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