Waitrose and Partners
Caribbean black cake

Caribbean black cake

This recipe is packed with rum-soaked fruit and is made with sticky black treacle and soft brown sugar to bring a rich, sweet flavour to the cake.

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  • Serves16
  • CourseCake
  • Prepare20 mins
  • Cook2 hrs
  • Total time2 hrs 20 mins
  • Plussoaking and cooling

Please note, we take every care to ensure the product, allergen and recipe information displayed is correct. However, should a product be unavailable, alternatives may be displayed and/or a substitution provided. If you have an allergy or intolerance, please always check the product label before use.


  • 500g pack essential Waitrose Mixed Fruit
  • 270g pack Waitrose Love Life Soft Prunes, roughly chopped
  • 500ml dark rum
  • 250g butter, softened
  • 250g light brown muscovado sugar
  • 4 medium Waitrose British Blacktail Free Range Eggs, beaten
  • 1 tbsp vanilla extract
  • 3 tbsp black treacle
  • 200g self-raising flour


  1. Put the mixed dried fruit and prunes in a bowl with the rum. Cover and leave to stand for at least 6 hours or overnight.

  2. Tip the fruit and any unabsorbed rum into a food processor, and blend briefly until the fruits are chopped but not completely puréed.

  3. Preheat the oven to 150°C, gas mark 2. Grease and line the base and sides of a 25cm loose-bottomed cake tin. Put the butter and sugar in a bowl, and beat with an electric whisk until very smooth and creamy. Gradually beat in the eggs, a little at a time, until thickened and smooth. If the mixture starts to separate, add a little of the flour.

  4. Stir in the vanilla and treacle, followed by the flour. Once the flour is mostly combined, tip in the dried fruit mixture and stir in gently until evenly distributed. Transfer to the tin and level the surface.

  5. Bake for about 2 hours or until the surface of the cake feels firm to the touch and a skewer inserted into the centre comes out clean. Leave to cool in the tin. The cake will most likely dip a little in the centre, but this is normal. Store in an airtight container where it will keep well for several weeks before cutting.


Typical values per serving when made using specific products in recipe


1,576kJ/ 375kcals



Saturated Fat












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Overall rating (4/5)

4 out of 5 stars1 rating