California Prune & Blueberry Shortbread Crumble Slices

Makes: 12 portionsPrep Time: 20 minutesCook Time: 30 minutes


  • 250g Butter
  • 1 Egg yolk
  • 125g Sugar
  • 375g Plain flour
  • 125g Rolled oats
  • 1 Lime
  • 300g California Prunes
  • 300g Blueberries


  1. Place the butter, sugar and egg yolk into a mixing bowl and using an electric mixer blend together until light and fluffy.
  2. Fold in the flour and stir together.
  3. Transfer the mixture onto a clean work surface and knead together to form a ball of dough before putting to one side to rest.
  4. To make the filling, place the California Prunes, blueberries and the zest and juice of one lime into a shallow pan.
  5. Cook the fruit on a low heat until the California Prunes start to breakdown.
  6. Once the fruit is soft, use a potato masher to press down on the fruit to make a simple jam.
  7. Put the jam to one side and leave to cool.
  8. Divide the biscuit mixture into thirds. One third is for the topping and two thirds for the base.
  9. Roll the large portion out into a lined baking tray 25cm x 15cm approximately.
  10. Prick the biscuit base with a folk and bake in a pre heated oven at 160c for 10 minutes.
  11. Add the oats to the remaining biscuit mixture and mix together with your finger tips to create a crumble type texture.
  12. Once the base has had its first 10 minute bake remove from the oven, spread the jam mixture to cover the base, then scatter over the crumbly topping.
  13. Return the biscuit to the oven and bake for a further 15 minutes or until golden.
  14. Leave the shortbread to cool for 30 minutes before cutting into portions.


Peter Sidwell

Peter Sidwell

California Prune Board Ambassador Peter Sidwell, is a chef, baker, TV presenter, author, and innovator of all things food related. Peter has been a chef all his working life and over the years has developed a simple, fresh and innovative way of cooking which focuses on the importance of fine ingredients and technical know-how to ensure the best results. Peter has travelled the world cooking, talking and demonstrating his approach and explaining how and why it works so well for all manner of food offerings. Peter works both with chefs, consumers, food producers and retailers to innovate, create process or refine procurement. Working from his new innovation centre in England's beautiful Lake District, Peter and his team create exciting, attractive and mouth-watering new recipes with digital content, showcasing the delicious flavour and versatility of California Prunes.