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Chocolate Marble Drizzle Cake for Birthdays, Valentine’s Day & More

Whether you celebrate or not, it is difficult to ignore all the flowers, chocolates, and gift displays in many shops in the build up to Valentine’s Day, this Wednesday.  I have been wanting to make a Bundt cake for ages, having borrowed a  cake tin from my Mum’s vintage collection.

Flat Brew Espresso Coffee spread

I discovered a new product, Flat Brew Espresso coffee spread (@flat_brew) and also wanted to experiment with it in a recipe. By random chance, perhaps fate,  I call it cake karma I bumped into the founder who was running a sampling stand in Fortnum & Mason, the famous food emporium in Piccadilly, London just before Christmas. After a chat he suggested the coffee spread would be better in a cake frosting rather than baked into a cake. I am also in family birthday season- three which fall within the next month, including yours truly. So whether it be for a birthday, Valentine’s, Galentine’s or just because you like cake here’s my version of John Whaite’s Chocolate Marble drizzle cake  with a few taste2taste twists. John is a Great British Bake Off Winner, cookery book writer & cookery school founder (@johnwhaiteskitchen) & his Instagram photo looked delish! Cake karma it is so I combined all of the above. The coffee spread is optional, you could use espresso powder, very strong coffee or leave out if not a fan.  However I  like the mocha ( chocolate/ coffee) intense  flavour combo.  If you want to make it easier use a smooth ring or loaf tin to avoid the stress over whether the cake will release from the Bundt tin.  I however was up for the challenge!


Ingredients- Marble Cake:

250g/ 8.8 oz very soft unsalted butter plus extra 20g/0.7 oz for greasing if using Bundt tin

275g/9.7 oz caster ( superfine or baking) sugar

6 large eggs at room temperature, broken into a jug & lightly mixed using a fork

250ml/ 8.4 fl oz buttermilk ( I used Court Lodge organic natural yoghurt)

350g/ 12.3 oz  plain ( all purpose) flour, sieved

1/2 teasp. bicarbonate of Soda, sieved into flour

1 teasp. vanilla bean paste

2 tbsp. cocoa powder

3 tbsp. hot water

2.5 litre/ 10 cup Bundt tin, ring or loaf tin

Ingredients- chocolate/ mocha drizzle:

75g/ 2.6 oz dark chocolate ( 70% cocoa solids)

50g/1.8 oz  milk chocolate ( 55% cocoa solids)

50g/1.8oz   white chocolate

190ml/ 6.5 fl oz double cream  ( heavy cream)

1 dessertspoon Flat Brew Espresso Coffee Spread ( or use  strong espresso powder)


Preheat fan oven to 160C/ 320F/ gas mark 4

Bundt tin Preparation:

John’s advice – double coating of melted butter

I followed John’s foolproof method for preparing the Bundt tin. Melt 20g/ 0.7 oz butter and brush a thin layer on the inside of the Bundt tin getting in every nook & cranny using a pastry brush. If you have room put in the freezer for a few minutes, I used the fridge to set.

Bundt tin buttered & floured

Repeat with another layer of melted butter then dust all over with a handful of flour again ensuring the whole tin is well coated. Shake the pan to get an even layer then tap out the excess flour over the sink. If using a ring cake or loaf tin just grease with a little soft butter as you won’t need to coat using this method. The cake should release easily after cooling.


To ensure  the butter is very soft,  put 250g/ 8.8 oz into a mixer with a paddle/ k blade attachment & beat on high for a few minutes. Use a spatula to scrape down the bowl. Add the caster/ superfine sugar and mix on high speed for about 5 minutes  until pale & fluffy. Scrape down the bowl.

Cake batter – split after 6 eggs ( don’t panic!)

Add the egg mixture a little at a time ( 5 or 6 additions) beating on slow for 30 seconds then on high for 90 seconds. Scrape down the bowl in between egg additions. John’s recipe says the mixture could split. Traditionally I would add a tablespoon of flour to bring back, but the recipe says keep going – so I did! Add the buttermilk or natural yoghurt in 4 additions, mixing on slow for a few seconds then on high for 60 seconds between each addition to combine. Again the cake mixture could split ( it looks slightly lumpy) but again ignore. Add the vanilla paste and mix on high for 30 seconds. Make sure the mixer is on its slowest setting and add the flour in 3 additions mixing for 20 seconds then stopping to scrape down the bowl in between.

Vanilla cake batter

The batter should now be smooth and pale yellow, stop the mixer as soon as combined so as not to overmix which can make the finished cake texture slightly dense. Put half the cake batter into another large mixing bowl.  In a small jug add the cocoa powder,  hot water & mix well until combined. Add to one half of the cake mixture and stir gently with a spatula until an even chocolatey colour. Blob alternatively vanilla and chocolate batters into the tin using 2 spoons. Once full use a spatula or knive to swirl the  batters to form the marbling ( see photo)

Marble cake ready to bake

Bake the cake on the middle shelf  of a fan oven for 50-60 minutes, each oven is different & mine took 50.

In the oven – almost baked

Remove the cake and insert a skewer which will come out ‘clean’, no cake sticking to it which means it is baked. My cake had a few cracks on the surface which is fine as this is the base & won’t show. Leave to cool for 20 minutes in the tin. Give the tin a good shake and invert onto a cooling rack. I used the skewer round the edge of the tin before turning out to help release it cleanly. Allow the cake to cool completely before decorating.

1st Bundt cake out of the tin – phew!


Break the chocolate into small pieces into 3 bowls – one for each chocolate type. If using the coffee spread/ espresso coffee powder  add 1 dessertspoon to the milk chocolate bowl.  Heat the cream in a small saucepan on medium heat for a few minutes until boiling point and add a third to each bowl to melt the chocolate. Leave for 30 seconds then mix well with a fork ( one for each bowl) until a glossy drizzle mixture is formed. If too thick add a little more hot cream. With the cake on the cooling rack drizzle each chocolate randomly over the cake. I used newspaper on the counter for less mess! The aim is to look abstract so have fun! Leave for at least 1 hour to ensure it is fully set before moving onto a serving plate/ stand.

Chocolate Mocha Drizzle with Flat Brew

I actually left mine overnight. I also used a little dab of melted chocolate on the serving plate to hold the cake as I had to transport it to the other side of London to deliver for the family birthday. This cake keeps well for a few days in an airtight container although it won’t last long, if your family are anything like mine!

Cake for two!

Chocolate ( mocha) marble drizzle cake for Birthdays, Valentine’s Day or for any reason to eat home made cake!



    • Hi I’m glad you enjoyed reading the post. It was fun to make especially the chocolate drizzling! It would be easier to use a smooth cake tin – ring shaped or whatever tin you have & like. Have fun & enjoy the cake Best Wishes L🍰😋

      Liked by 1 person

      • Hi Laila You may need to adjust the baking time as a ring or Bundt will bake quicker with the hole in the middle! The skewer test is always helpful & every oven is different too- the wonders of baking! We love it! If you do make it please send us a picture- we are on Instagram, Twitter @taste2taste or Facebook. Happy baking! L 🍰🙏😋

        Liked by 1 person

    • Hi Jo Thanks! The Bundt cake was a bit of a challenge- simpler to use a smooth ring tin. The chocolate drizzling was great fun. The family & birthday cake was enjoyed & quickly eaten- always a good sign. Please post a photo if you do make it! Happy cake day L 🍰🍫😋


    • Hi Thanks! A lovely cake – easier with a smooth sided cake tin! Please let us know if you make it! Happy baking L 🙏🍰🍫☕️😋


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