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A golden brown Blackberry Upside Down Cake flipped onto a clean white serving plate.

Blackberry Upside Down Cake


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5 from 17 reviews

Description

This vibrant upside-down cake features a luxurious layer of caramelized wild blackberries resting beneath a light, buttery sponge. By utilizing a rapid food-processor method, this recipe achieves a perfect structural balance between juicy fruit and a tender, velvet crumb.


Ingredients

  • 250g fresh wild blackberries
  • 100g plain flour
  • 100g caster sugar
  • 100g unsalted butter, softened
  • 50g light brown sugar
  • 2 large eggs
  • 1 tsp baking powder
  • 0.5 tsp bicarbonate of soda
  • 2 tbsp full-fat milk
  • 1 tsp vanilla extract


Instructions

  1. Prepare the oven. Preheat your oven to 180°C (350°F) and grease a 24cm by 5cm ovenproof dish thoroughly.
  2. Create the base. Sprinkle the light brown sugar evenly over the greased bottom of the dish to form a sandy base.
  3. Dry the fruit. Wash the blackberries gently and pat them completely dry on paper towels to ensure a clean flip.
  4. Arrange the berries. Scatter the blackberries in a single, dense layer over the brown sugar and press them down lightly.
  5. Sift dry ingredients. Place a fine-mesh sieve over a food processor and sift together the flour, baking powder, and bicarbonate of soda.
  6. Blitz the batter. Add the softened butter, eggs, caster sugar, vanilla, and milk, processing until the mixture is smooth and satiny.
  7. Spread the batter. Dollop the batter over the blackberries and spread carefully into a thin, even layer.
  8. Bake the cake. Bake for 25 minutes until golden brown, testing the center with a skewer until it emerges clean.
  9. Cool and flip. Rest the cake for 10 minutes, loosen the edges with a knife, and invert onto a serving plate with a swift motion.
  10. Final cooling. Allow the cake to sit for at least 30 minutes before slicing to ensure the sponge is set and the caramel is absorbed.

Notes

  • Use a glass or ceramic baking dish for better heat management compared to dark metal pans.
  • Ensure the butter is soft to the touch to achieve a perfect emulsion during the quick blitz process.
  • Double-check that blackberries are completely moisture-free to prevent the base from turning into a soggy puddle.
  • Let the cake rest in the pan for exactly ten minutes to allow the caramel to thicken before flipping.
  • Prep Time: 10 mins
  • Cook Time: 25 mins
  • Category: Dessert
  • Method: Baking
  • Cuisine: Modern British