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
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).
If, like me, you are a blondie superman, I have had lots of fun experimenting with blondie flavours! On my blog I now have soooo many, its actually hard to choose! With flavours like Rolo, Kinder Bueno, bakewell and even millionaires, this traybake is a guaranteed crowd pleaser for any occasion!
Lemon and blueberry
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 used lemon zest in my blondies, but you can use a lemon extract if you don’t fancy buying fresh lemons for the recipe. I love using lemon zest in baking but you need to use unwaxed lemons so that you’re not accidentally grating wax into your bake.
Lemon and blueberry together is a wonderful combination – as good as strawberries and chocolate, apple and cinnamon and even caramel and ginger! 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!
The blondie batter
The blondie batter for me is so easy to mix together and I adore it so much. I mix the butter and sugars, mix in my eggs, and in the flour, lemon zest and white chocolate and you have a good thick mixture.
- Butter – this can be actual real butter, a baking spread, or even a margarine
- Sugar – I use both light brown soft sugar and granulated sugar in these blondies, but all of one or all of the other works well
- Eggs – my blondies tend to use three as standard, I always use medium eggs, but two large and a yolk would work
- Flour – just regular plain flour, or you’ll have a cake texture. I also use cornflour for texture but this can be replaced with 25g more plain flour
- Lemon – I use the zest of a lemon here, but you can use 1-2tsp lemon extract if you prefer.
- White chocolate – for the chips in the blondie
- Blueberries – the main event, of course
Decoration
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?!
I love to drizzle on some melted white chocolate, and then sprinkle over some lemon zest for an extra little decoration and flavour – but this is all optional.
Recipe updated April 2024
Every now and again I will update blog posts due to more knowledge, more practice, and what I prefer. However, I will always keep the original recipe on the post – and here it is:
- 250g unsalted butter, 250g caster sugar, 4 medium eggs, 200g plain flour, zest of 2 lemons, 250g white chocolate chips, 200g blueberries
- I melted the butter until smooth, and whisked in the sugar for 3-4 minutes until mousse like.
- Whilst whisking I poured in the melted butter slowly, and then I folded through the flour and lemon zest.
- Finally, the white chocolate and blueberries were also folded through.
- The mix was baked in the oven in a 9” square tin, at 160ºfan, for 35-40 minutes.
- It was decorated in the same way as it is now
Tips and Tricks
- I use a 9″ square tin for my blondie recipes
- This recipe was updated April 2024 – notes above on the original recipe
- These will last for 3-4+ days at room temperature, or in the fridge
- These will freeze for 3+ months
- You can swap the lemon zest to lemon extract if you prefer
- I use this white chocolate
Lemon and Blueberry Blondies!
Ingredients
- 200 g unsalted butter (melted)
- 125 g light brown soft sugar
- 125 g white granulated sugar
- 3 medium eggs
- Zest of 2 lemons
- 275 g plain flour
- 1 tbsp cornflour
- 200 g white chocolate chips
- 200 g blueberries
Decoration
- 50 g white chocolate (melted)
- lemon zest
Instructions
- Preheat the oven to 160ºc fan and line a 9” square tin with parchment paper
- Mix the butter and sugars together in a bowl until combined
- Add eggs and lemon zest and mix
- Add flour, cornflour and chocolate chips
- Add blueberries and pour into 9” square tin
- Bake 160º fan 25-30+ minutes until there is a small wobble in the middle and leave to cool fully in the tin
- Drizzle melted white chocolate and add lemon zest, set in fridge for 2-3+ hours, and portion
Notes
- I use a 9" square tin for my blondie recipes
- This recipe was updated April 2024 - notes above on the original recipe
- These will last for 3-4+ days at room temperature, or in the fridge
- These will freeze for 3+ months
- You can swap the lemon zest to lemon extract if you prefer
- I use this white chocolate
Find my other recipes on my Recipes Page!
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J x
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I am going to make these this weekend but I wondered about swapping the blueberries for raspberries.. Would you adjust the recipe in anyway to exchange the blueberries for raspberries?
Hey! No they should be a straight swap so go ahead! x
Hey! Just wondering whether these can be made without the blueberries and if so what tweaks would you need to make to the recipe to sort this?
Thankyou!
You could just remove them, and they may take less baking time!
Can I use frozen blueberries?
Yes!
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.
Really great recipe! I was just wanting to know do they need to be kept in the fridge once put in containers?
No, they don’t!
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!
Such a good recipe, really yummy and easy to make! A real people pleaser x
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
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!
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.
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!
Do you have any way of making your Blondies gluten free? I have recently become gf but used to LOVE these Blondies!
Theoretically you can just straight swap to GF flour, but I would advise adding in a little xantham gum as well!
Theoretically, you can just straight swap to GF flour, but I would advise adding in a little xantham gum as well!
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?
I personally don’t bother a lot of the time x
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!!
Where did you get your sprinkles from? I can’t find any for love nor money! 🙁
They’re Cake Angels sprinkles which I think are sold in sainsburys and lakeland? x
Ah fab will have a look there at the weekend! 🙂
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.
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
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