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Lemon & Blueberry Blondies

Lemon & Blueberry Blondies

Yummy white chocolate blondies flavoured with lemon zest, fresh blueberries and lemon icing

Course Dessert
Cuisine American
Keyword Blondies
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings 12
Author thebakingexplorer


For the blondies

  • 200 g Butter or baking spread
  • 300 g Golden caster sugar
  • 150 g White chocolate broken into squares
  • 3 Eggs large
  • 2 Lemons zest only
  • 225 g Plain flour
  • 150 g Blueberries

For decoration

  • 1 Lemon juice only
  • 150 g Icing sugar


  1. Pre-heat your oven to 180C/160C Fan/350F/Gas Mark 4, and grease and line a 12" x 9" traybake tin

  2. Melt the butter with the golden caster sugar in a pan on a low heat

  3. Once the butter has melted, take the pan off the heat and add the white chocolate. Leave it for a couple of minutes to melt, then stir together. Leave the mixture to cool for 5 minutes

  4. Break the eggs into a bowl and add them to the mixture, keep whisking as you pour them in to make sure the mixture doesn't cook the eggs. Then stir in the lemon zest

  5. Add the flour and whisk it in, then pour the batter into the lined traybake tin

  6. Dot the blueberries all over the batter

  7. Bake for 30 minutes, or until they are golden brown all over. Using a skewer inserted in the centre doesn’t give a clear indication that they are done because blondies are meant to be gooey and almost a little under cooked. Blondies are the white chocolate version of brownies and they are not like cake. They will also set more as they cool down, wait until they are cool to remove them from the tin and slice into pieces

  8. Make an icing by mixing together the icing sugar and lemon juice. Add the lemon juice slowly as you may not need it all. If you need more liquid, add some water

  9. Drizzle the icing all over the blondies, I used a piping bag with the end snipped off, or you can use a spoon

  10. Chop into squares to serve, store leftovers in an airtight container in a cool place and eat within 3 days

Recipe Notes

If you would like to use a 8" or 9" square tin instead, reduce the recipe by one third. So you will need:

  • 135g Butter
  • 200g Golden caster sugar
  • 100g White chocolate
  • 2 Eggs
  • 150g Plain flour
  • 100g Blueberries
  • 1 1/2 Lemons (zest only)

They will also need less time to bake, depending on your oven, I'd suggest 20-25 minutes.