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Caramelised Blueberry Blondies

Sweet and squidgy caramelised blueberry blondies made with British blueberries. Flavoured with lemon and white chocolate, which caramelises as it cooks.

Five caramelised blueberry blondies laid out on a plate for afternoon tea.

British Blueberries

Homegrown berries are aplenty at this time of year. But did you know you can get British blueberries too? They’re generally available from June right through to September, which makes them a reliable fruit for summer baking. These berries are full of antioxidants and phytonutrients, so you can feel thoroughly virtuous when you tuck in. They taste good too.

The British blueberry season is still in full swing, well maybe not quite full swing, but my mother is still picking blueberries here in Cornwall, so there are certainly some around. Blueberries pair very nicely with white chocolate, so when I was commissioned to create a recipe for Wayfair last month, I used this combination to make some caramelised blueberry blondies.

For those not in the know, Wayfair is an online outfit selling furniture and other household items. Both the cloth and rectangular plate featured in the photographs come from this establishment.

Caramelised Blueberry Blondies

The blueberry blondies, inspired by these raspberry blondies I made last year, are sweet and squidgy with a beautiful colour as well as flavour from the blueberries. The addition of lemon zest gives a delightful citrus zing.

The piece de resistance, however, is the white chocolate which caramelises whilst cooking giving a crunchy and very tasty crust.

Five caramelised blueberry blondies laid out on a plate for afternoon tea.

Ingredients Needed

Essentially, other than basic store cupboard ingredients, all you need to make these caramelised blueberry blondies is blueberries, white chocolate and a lemon.

Ingredients needed to make caramelised blueberry blondies.

Equipment Needed

Mixing bowls, 8inch (20cm) square silicone mould or cake tin, spatula, spoons, small saucepan. A handheld electric whisk is useful, but not necessary.

Top Tips For Baking Caramelised Blueberry Blondies

Like most blondies and brownies, these caramelised blueberry blondies are really simple to make. However, as with most bakes, there are a few things worth noting. Here are three of my top tips.

Tip 1 – Get Prepared

Gather all your ingredients together and weigh out what you need. You are then ready to go and won’t be held up by searching frantically for a missing ingredient half way through the process.

Tip 2 – Dry Blueberries

Ensure blueberries are dry before adding to the bake if you don’t want them to form a layer at the bottom. If they do sink, make a feature of them.

Tip 3 – Picnics

If taking on a picnic, bake the day before so the blondies have a chance to properly firm up.

How To Bake Caramelised Blueberry Blondies

Melt the butter and white chocolate in a pan over a gently heat. As soon as it’s melted, stir well to combine, then leave to cool a little.

White chocolate chips in a pan of melted butter.
Eggs and sugar in a bowl with whisk attachements.

In a separate bowl, whisk the sugar, grated lemon zest and eggs together until the mixture has tripled in volume. An electric whisk is best for this.

Melted white chocolate in a bowl with whisk attachments.
White chocolate chips and blueberries added to blondie batter.

Pour the melted white chocolate mixture down one side of the egg bowl and gently fold it in with a metal spoon using a figure of eight pattern.

Sieve in the flour and baking powder and fold in using the same method as above. Finally, gently stir in the chocolate chips and blueberries, reserving twelve for the top.

White chocolate chips and blueberries topping blondie batter.
Baked white chocolate blondie batter in baking pan.

Scrape the batter into a tin lined with baking paper or silicon mould. Scatter the remaining white chocolate chips and blueberries over the top.

Bake in the centre of the oven for approximately twenty minutes. You’re looking for a firm golden top which still has a slight wobble in the middle of the bake.

Allow to cool completely before cutting into twelve squares.

Other Blondie Recipes You Might Like

Keep in Touch

Thank you for visiting Tin and Thyme. If you make these caramelised blueberry blondies, I’d love to hear about it in the comments below. Do you have any recommendations or advice for making white chocolate blondies?

Please rate the recipe. If you post pictures of your creations on social media, use the hashtag #tinandthyme so I can see them.

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Choclette x

Caramelised Blueberry Blondies. PIN IT.

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Five caramelised blueberry blondies on a rectangular serving plate.
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5 from 1 vote

Caramelised Blueberry Blondies

With a hint of refreshing citrus and an engaging crunchy caramelised crust, these delicious blueberry blondies are a real crowd pleaser. They are light, but also moist enough to hold the flavours and will satisfy adults and children alike. They are quick and simple to prepare and make a great bake for summer afternoon teas in the garden; when properly cooled they are sturdy enough to be taken on picnics.
Prep Time15 minutes
Cook Time20 minutes
Total Time35 minutes
Course: Afternoon Tea, Picnics
Cuisine: British
Keyword: blondies, blueberries, easy
Servings: 12 slices
Calories: 257kcal

Ingredients

  • 115 g unsalted butter
  • 100 g good quality white chocolate broken into chunks
  • 2 large eggs
  • 115 g golden caster sugar
  • 1 lemon zest grated
  • 125 g flour (half wholemeal, half plain white)
  • ½ tsp baking powder
  • 100 g white chocolate chips divided into 60g and 40g
  • 150 g blueberries reserving a handful for the top

Instructions

  • Lightly grease a 20cm (8 inch) square silicone mould or if using a tin, line with baking paper. Place the butter and broken pieces of white chocolate into a small saucepan and melt over a very low heat. Remove from the heat and stir until combined. Allow to cool a little whilst getting on with the next step.
    115 g unsalted butter, 100 g good quality white chocolate
  • Set the oven to 180℃ (160℃ fan, 350℉, Gas 4). Either by hand or using electric beaters, whisk the eggs, sugar and lemon zest together in a large bowl for a few minutes until the mixture is thick, pale and creamy. Pour the white chocolate mixture carefully down the side of the bowl. Using a metal spoon, fold in to the egg mixture using a figure of eight pattern until just incorporated.
    2 large eggs, 115 g golden caster sugar, 1 lemon
  • Sift in the flours and baking powder, throwing in any bran left in the sieve and fold gently into the mixture using the same method as above. Gently stir in 60g of white chocolate chips followed by the blueberries.
    125 g flour, ½ tsp baking powder, 150 g blueberries
  • Using a spatula, scrape the mixture into the silicone mould or tin. Scatter the remaining 40g of chocolate chips over the top followed by the reserved blueberries. Bake in the centre of the oven for about 20 minutes, when it should be well risen and golden but with a slight wobble in the centre. Allow to cool completely before turning out, then cut into 12 bars.

Notes

Tip 1 – Gather all your ingredients together and weigh out what you need. You are then ready to go and won’t be held up by searching frantically for a missing ingredient half way through the process.
Tip 2 – Ensure blueberries are dry before adding to the bake if you don’t want them to form a layer at the bottom. If they do sink, make a feature of them.
Tip 3 – If taking on a picnic, bake the day before so the blondies have a chance to properly firm up.
Please note: calories and other nutritional information are per serving. They’re approximate and will depend on serving size and exact ingredients used. Please refer to my nutrition disclaimer for further information.

Nutrition Estimate

Calories: 257kcal | Carbohydrates: 30g | Protein: 4g | Fat: 14g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.3g | Cholesterol: 51mg | Sodium: 27mg | Potassium: 99mg | Fiber: 2g | Sugar: 21g | Vitamin A: 293IU | Vitamin C: 6mg | Calcium: 50mg | Iron: 1mg
Tried this recipe?Leave a comment below letting us know how you got on and do share a photo on Instagram. Tag @choclette8 or use hashtag #tinandthyme.
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44 Comments

    1. Well Paul Hollywood would disapprove as they bleed into everything, but I like that. A classic blueberry muffin is a good place to start and adding lemon to them brings out the flavour and stops them being too sweet too.

  1. These look fantastic. You’re right, white chocolate and blueberry is a fantastic combination (though I am biased as white chocolate is my favourite type of chocolate…) I’ve never made blondies before though. These look quite straightforward so I’ll definitely be bookmarking these!

    (PS. I hadn’t discovered Wayfair until very recently and feel my bank balance may be about to take a hit haha!)

  2. These look delicious! I love the addition of the blueberries in them. I’ve never had a blonde with fruit in them, so will have to try these. Thanks for including my recipe as well 🙂