Recipes Uncategorised

Biscuit Stack Cake

Heart shaped stack cake for James Martin by Rosie Dummer Cake Diva

On my first visit to James Martin’s Saturday Morning Show on ITV I was tasked with creating a special desert table for his 100th show. A biscuit stack cake was a great way to personalise the offering; a combination of sable biscuit and buttercream with a pretty display of toppings.

I’ve got the recipes here for you and don’t forget that I have other buttercream recipes on my blog and on my YouTube Channel; take your pick!

This simple yet beautiful dessert takes a simple Sable recipe and creates a stunning arrangement; easy to make and perfect for tearing and sharing.


For the Sable Biscuit

200g plain flour
100g icing sugar
150g butter
Pinch of salt 
2 egg yolks 
For the Buttercream
500g Butter
1kg Icing Sugar
1 tsp vanilla extract
Water or milk to adjust consistency
Red/Pink food colouring gel


For the Biscuit

  1. Preheat the oven to 180C (160C for fan assisted) or Gas Mark 4
  2. Draw out your heart shapes onto baking paper and cut out to use as a template.
  3. Put the flour, icing sugar and butter into a food processor and mix together.
  4. Add the salt and egg yolks and knead to form a dough.
  5. Roll out the dough to about ½ cm thick and cut out the heart shaped using your template.
  6. Place on a non-stick baking sheet and leave a little space around the edges.
  7. Bake for approximately 10 minutes or until the edges are starting to brown.
  8. Leave to cool before assembling.

For the Buttercream

  1. Mix the butter and icing sugar  (in a mixer if possible) on high for about 5 minutes until smooth and fluffy. Add the vanilla extract and if needed, a tbsp or 2 of  water or milk to improve the consistency.
  2. Split the Buttercream into 3 portions and use the colouring gel to create a light, medium and dark shade.
  3. With a piping bag and a star tip, pipe blobs of the dark shade onto one biscuit heart.
  4. Add the second biscuit and repeat with the medium shade and then again with the last biscuit and the light shade.
  5. Decorate the top layer with fruit and edible flowers for a Valentine treat fit for sharing. 

You can find links to more buttercream recipes here:

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