Sweet Orange & Thyme Marble Loaf Cake

I created this recipe for the wonderful people at Seed and Bean Chocolate who very kindly sent me a whole batch of their gorgeous chocolate to experiment with! You can find this recipe – and many more exciting creations over on their website.


  • 2.5 cups self-raising flour
  • 2 tsp baking powder
  • 1 cup light soft brown sugar
  • ½ cup butter + 1 tbsp for greasing (use vegan butter if you wish)
  • 1 tsp vanilla extract
  • 1 cup milk of choice
  • 1 tsp apple cider vinegar
  • Pinch salt
  • 85g Seed & Bean Sweet Orange and Thyme Dark Chocolate
  • Zest from 1 fresh orange
  • Juice from ½ fresh orange


  1. Preheat the oven to 180 Celsius and grease a 900g loaf tin with 1 tbsp butter
  2. Combine milk and apple cider vinegar in a small bowl and set aside
  3. Meanwhile, add 2 and ¼ cups of  the flour, the sugar, baking powder and salt to a large bowl and mix well to combine
  4. In a separate bowl, use an electric hand whisk to cream the butter and vanilla extract until light and fluffy (about 2 minutes)
  5. Add the milk mixture to the butter mixture and whisk for a further 2-3 minutes
  6. Add the flour mixture, 1/3 at a time until well combined and then set aside
  7. Melt the chocolate over a bain-marie
  8. Fold 1.5 cups of the cake mixture to the melted chocolate and set aside
  9. Add the orange zest, juice and remaining ¼ cup flour to the remaining cake batter and mix well to combine
  10. Alternately dollop the two batters into the greased loaf tin and use a butter knife to create a marble effect
  11. Bake for 40 – 45 minutes or until a skewer comes out clean
  12. Allow to cool in the tin for 5 -10 minutes before removing from the tin and cool completely before slicing
  13. Store in an airtight container and consume within 3-4 days

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