Lemon & Blueberry Blondies!

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Deliciously Sweet, Light, Lemon & Blueberry Blondies with White Chocolate Chunks!

So… yep, THESE ARE THE BEST. I am honestly astounded at how much I love these, and I am sure you will all love them as well. Think a gooey and delicious Lemon flavoured Blondie, with White Chocolate Chunks, and some fresh blueberries… my idea of heaven. I am Lemon & Blueberry obsessed as it is, so in a ~basicallywhitechocolatebrownie~its HEAVEN.

This recipe is basically based exactly on my White Chocolate & Raspberry Blondies, and White Chocolate & Pistachio Blondies and I’m not ashamed of that. It’s a recipe that works for me, and I have seen so many of you bake them as well that I couldn’t resist! Why mess with something that actually works?!

Blondies, if you haven’t heard of them, are basically what is considered a white chocolate brownie. The idea is that a regular brownie usually has a base of dark chocolate, like mine do, or cocoa powder which is what makes them into a brownie. You’d think that you would want these to have a white chocolate base, and I have tried recipes like this, but I wasn’t a fan.

I much preferred just making it more of cake mixture style Blondie, and adding in oodles of white chocolate. It worked really well for the other recipes, so I am sticking with it! I obviously had to make this Lemon flavoured however so I thought lemon zest would be best. You can easily use lemon extract if you prefer (two teaspoons)!

For these I used fresh blueberries, but they would still work with frozen. Frozen berries can often give out more liquid than fresh due to thawing, but they still work dandy when baked enough! They give a pop of colour in every slice, and just taste completely and utterly delicious. Obviously, if fruit isn’t your thing, then these wont be for you… but you could always just use the lemon, or just the blueberries with the white chocolate!

I obviously went a little further with the decoration because I am me after all… but thats that. You don’t have to drizzle white chocolate on the top, but why wouldn’t you want more chocolate in your life?!

If you love the taste of Lemon and Blueberry together like these Lemon & Blueberry Blondies.. you might love my Lemon & Blueberry Cake, and my Lemon & Blueberry Cheesecake! Enjoy! x

Lemon & Blueberry Blondies!

Deliciously Sweet, Light, Lemon & Blueberry Blondies with White Chocolate Chunks! 
4.63 from 8 votes
Print Pin Rate
Category: Dessert
Type: Blondies
Prep Time: 15 minutes
Cook Time: 35 minutes
Total Time: 50 minutes
Servings: 16 Pieces
Author: Jane's Patisserie


  • 250 g Unsalted Butter
  • 250 g Caster Sugar
  • 3 Large Eggs
  • 200 g Plain Flour
  • Zest of 2 Lemons
  • 250 g White Chocolate Chips
  • 200 g Blueberries
  • 100 g White Chocolate (melted)
  • Sprinkles


  • Preheat your oven to 180C/160C Fan, and grease and line a 9x9inch Square Tin - leave to the side for now. 
  • Melt the Butter in the microwave, or in a pan, and stir till smooth. Leave to cool slightly on the side. 
  • Using an electric whisk/stand mixer, whisk together the Eggs and Caster Sugar for a good 3-4 minutes or longer, until it has become much thicker, mousse like, paler, and basically doubled in volume. 
  • You will know its done when when you lift the whisk up, it will leave a trail on the top of the mixture  for a couple of seconds before sinking back in. 
  • Once whisked up, continue whisking but gradually pour in the butter. Don't pour it in too quickly or the mixture will split. 
  • Once all whisked in. Add in the Flour and Lemon Zest and fold together. Add in the White Chocolate Chips, and half of the Blueberries and fold again. 
  • Pour into the tin, and sprinkle on the rest of the Blueberries. 
  • Bake in the oven for 35-45 minutes, or until its baked through. Sometimes it can take longer due to some ovens, and if you have actually whisked it up enough in the first place. 
  • Once baked, leave to cool in the tin. 
  • Once cooled, remove from the tin and drizzle over the 100g of melted chocolate for decoration, and some sprinkles to boot! Leave to set and but up into your squares. 


  • Sometimes Brownies & Blondies and such can take a while to bake, for some random reason… so if at 35-45 minutes yours isn’t baked through fully, cover the top with foil to prevent burning and continue to bake till done!
  • I have never tried this with frozen berries, and I’m not sure if it would work or not because of the moisture content. However, I seriously would recommend to NOT add any more blueberries then specified as moisture is released from normal blueberries as well, and the Blondies might not bake very well with any more!
  • The white chocolate chunks are entirely optional, but I just love the flavours of white chocolate and lemon together! 
  • These will last in a container for up to 7 days!
Nutrition Facts
Lemon & Blueberry Blondies!
Amount Per Serving
Calories 358 Calories from Fat 189
% Daily Value*
Fat 21g32%
Saturated Fat 13g81%
Cholesterol 78mg26%
Sodium 37mg2%
Potassium 104mg3%
Carbohydrates 40g13%
Fiber 1g4%
Sugar 30g33%
Protein 4g8%
Vitamin A 459IU9%
Vitamin C 1mg1%
Calcium 56mg6%
Iron 1mg6%
* These are only estimates and can vary dependant on brands of ingredients and serving sizes.


Find my other Blondie Recipes on my Recipes Page!

You can find me on:

J x

© Jane’s Patisserie. All images & content are copyright protected. Do not use my images without prior permission. If you want to republish this recipe, please re-write the recipe in your own words and credit me, or link back to this post for the recipe.

About Author

Hiya! I'm Jane, and I adore baking, cooking and all things delicious. I'm also partial to homewares, lifestyle posts and more!


  • Craig
    July 8, 2020 at 4:20 pm

    Can I use frozen blueberries?

  • Leanne
    May 23, 2020 at 7:54 pm

    5 stars
    Literally amazing, I’ve only just started baking in lockdown so I’m actually pretty useless however these were fool proof, I’m going to bake these for everyone, if you love lemon drizzle cake, and love chocolate, these are a game changer.

  • Jessica
    May 11, 2020 at 8:38 pm

    4 stars
    Really great recipe! I was just wanting to know do they need to be kept in the fridge once put in containers?

  • Amelia
    May 3, 2020 at 10:15 pm

    5 stars
    Honestly these are so good, I had to freeze half straight away otherwise I’d have devoured them all at once. Lemon, quite chocolate and blueberries what’s not to love? Another amazing bake, thank you!

  • susie
    April 30, 2020 at 11:37 am

    Such a good recipe, really yummy and easy to make! A real people pleaser x

  • Sophie
    April 22, 2020 at 10:16 pm

    4 stars
    Jane can you help me please. I baked these today and I would say they were more of a cake consistency than a brownie, what did I do wrong? Were they under done? Also do you have any tips for the blueberries that are at the bottom as they made my bottom soggy! Thankyou, I want to try again with some amendments

    • Jane's Patisserie
      April 23, 2020 at 9:02 am

      If they’re cakeier, they’re over done! Kinda like a brownie, less cooking time = the gooey! And you can try and coat the blueberries in a little flour if you want!

  • Lindsay Clark
    October 27, 2019 at 8:01 am

    5 stars
    I only recently discovered your blog and I’m so pleased I did. I baked a batch of these blondies for my son’s scout troop coffee morning. They went down an absolute storm and sold out in no time, I got lots of compliments for them. Loved how easy the recipe was and the result was perfect, thank you so much! I’ll definitely be giving more of your recipes a try.

  • Harriet
    October 2, 2019 at 6:36 pm

    Hi Jane!
    Absolutely LOVE these – so delicious and easy to make. I was hoping to batch cook them so I can keep a stash for emergencies – any tips on freezing them or is this not possible?
    Thank you!

  • Em
    September 29, 2019 at 2:27 am

    Do you have any way of making your Blondies gluten free? I have recently become gf but used to LOVE these Blondies!

    • Jane's Patisserie
      September 29, 2019 at 8:11 am

      Theoretically you can just straight swap to GF flour, but I would advise adding in a little xantham gum as well!

    • Jane's Patisserie
      September 29, 2019 at 8:11 am

      Theoretically, you can just straight swap to GF flour, but I would advise adding in a little xantham gum as well!

  • Jen Cordt
    March 26, 2019 at 10:02 am

    Hi, I really fancy trying this recipe as your blueberry and lemon sponge cake is delicious, just checking do you need to sift the flour before adding to the wet mixture?

    • Jane's Patisserie
      March 26, 2019 at 10:34 am

      I personally don’t bother a lot of the time x

  • JellyBean
    August 3, 2018 at 7:29 am

    5 stars
    Made these yesterday… Surprised how amazing these were… Beautifully moist and the blueberries in the cake looked amazing too… Never had a problem with every recipe I’ve done on this site…. I love it!!

  • Laura
    July 19, 2018 at 6:04 pm

    Where did you get your sprinkles from? I can’t find any for love nor money! 🙁

    • Jane's Patisserie
      July 19, 2018 at 6:17 pm

      They’re Cake Angels sprinkles which I think are sold in sainsburys and lakeland? x

    • Laura Cowan
      July 19, 2018 at 6:28 pm

      Ah fab will have a look there at the weekend! 🙂

  • Martin Eggenton
    June 22, 2018 at 10:17 pm

    5 stars
    I bake weekly for my friends and receive regular praise for my efforts. However, I have never received thanks as those when I baked this blondie recipe on 20/06/2018. I followed the recipe and baked for 40 minutes. The result was delicious. I have been instructed that I MUST bake this blondie again and soon! Thank you for your recipe. I’m looking forward to trying other recipes soon.

    • Lynsey
      May 16, 2020 at 11:24 am

      4 stars
      Hi Jane, I made these blondies today and the parts that cooked tasted delicious. My oven runs a little so o baked them on 160 for in the end around 55mins, but my middle still wouldn’t come out clean. Not sure if that’s meant to be the end result or whether I have gone wrong somewhere? Blondies and brownies are my nemesis because I am never quite sure at what stage I should take them out so they stay gooey but no undercooked. Any advice? X

    • Jane's Patisserie
      May 20, 2020 at 8:55 pm

      Hey!! So blondies/brownies are a lot of peoples nemesis unfortunately!! They can take longer for sure – and this can sometimes be down to being too heavy handed with the mix, or not whipping it up! The best thing to do is once it’s cooled, ‘set’ them in the fridge for a couple of hours and they firm up nicely!! x

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