Welcome, fellow dessert lovers, to a truly irresistible treat that embodies the warmth and sweetness of summer: our delightful Blueberry Lemon Blondies! Imagine a confection that’s perfectly buttery, exquisitely soft, and wonderfully chewy, brimming with the juicy goodness of ripe blueberries and a zesty kiss of fresh lemon. This recipe is more than just a dessert; it’s a celebration of seasonal flavors, a simple pleasure that transforms humble ingredients into something truly extraordinary.
Whether you’re looking for an elegant dessert to cap off a summer barbecue, a comforting snack to enjoy with your afternoon tea, or a bright companion to your morning coffee, these blondies are an absolute dream. They’re designed to be effortlessly delicious, bringing a burst of sunshine and happiness with every single bite. So, gather your ingredients and prepare to fall in love with these easy-to-make, utterly scrumptious blondies!

Why These Blueberry Lemon Blondies Will Become Your New Favorite
There’s a reason why these Blueberry Lemon Blondies quickly disappear from any plate they’re served on. They strike the perfect balance between classic comfort and vibrant flavor, making them a standout treat for any occasion. Here’s why you’ll absolutely adore this recipe:
- Effortless to Make: Forget complicated baking techniques. This recipe is incredibly straightforward, perfect for bakers of all skill levels. You won’t need any fancy equipment, just a few bowls and a spatula to create magic in your kitchen.
- Irresistible Texture: Prepare for pure bliss! Each blondie boasts a luxurious, buttery base that is both soft and delightfully chewy. The edges are perfectly golden and slightly crisp, while the center remains wonderfully tender.
- Bursting with Flavor: The star combination of sweet, plump blueberries and bright, zesty lemon is simply divine. The blueberries offer a juicy pop with every bite, beautifully complemented by the refreshing tang of lemon, creating a harmonious and vibrant flavor profile that screams summer.
- Seasonal Perfection: These blondies are the ultimate way to utilize those gorgeous, sweet blueberries that are so abundant during the summer months. It’s a delicious tribute to seasonal produce, ensuring you get the freshest taste possible.
- Perfect for Any Occasion: Whether you’re hosting a casual backyard get-together, a sophisticated brunch, or simply craving a sweet treat for yourself, these blondies are incredibly versatile. They cut cleanly into squares, making them ideal for sharing, transporting, and serving at parties.
- Freezer-Friendly: Baked a batch and have some leftovers (unlikely, but possible!)? These blondies freeze beautifully, allowing you to stash away a taste of summer for a rainy day. Simply thaw and enjoy whenever a craving strikes.

Essential Ingredients for Your Blueberry Lemon Blondies
Creating these sensational blondies starts with a handful of simple, high-quality ingredients. Each component plays a vital role in achieving that perfect texture and unforgettable flavor. Here’s a detailed look at what you’ll need:
- Unsalted Butter: The foundation of any good blondie! Unsalted butter allows you to control the overall saltiness of your bake. Melted butter contributes to the signature chewy texture of blondies, distinguishing them from cake-like brownies.
- Light Brown Sugar: This is key for that rich, caramel-like flavor and contributes significantly to the moist and chewy consistency. The molasses in brown sugar also helps keep the blondies tender.
- Large Eggs: Eggs act as a binder, providing structure and moisture. They also help create a rich, fudgy texture. Ensure they are at room temperature for better incorporation into the batter.
- Vanilla Extract: A splash of pure vanilla extract enhances all the other flavors, adding a warm, aromatic depth that makes these blondies truly comforting.
- Large Lemon: You’ll need both the zest and the juice! The zest provides an intense burst of citrus aroma and flavor, while the fresh juice adds a lovely tang that perfectly balances the sweetness of the blueberries and sugar.
- All-Purpose Flour: The primary dry ingredient for structure. It’s crucial to measure your flour correctly (spoon into the measuring cup and level off with a knife) to avoid a dense or dry blondie.
- Cornstarch: A secret weapon for ultimate tenderness! Adding a bit of cornstarch to the flour mixture helps to soften the gluten in the flour, resulting in a wonderfully soft and delicate crumb.
- Baking Powder: Provides a slight lift to the blondies, ensuring they are not too flat or dense.
- Salt: A pinch of salt is essential for balancing the sweetness and enhancing all the other flavors, making them pop.
- Fresh Blueberries: The star of the show! Use fresh, plump, sweet blueberries for the best results. Their natural juices will burst during baking, creating pockets of fruity deliciousness.
- Sliced Almonds (Optional): For an added layer of texture and a delicate nutty flavor, a sprinkle of sliced almonds on top before baking is highly recommended. It adds a beautiful golden crunch.
- Pure Cane Sugar (Optional): A light dusting of cane sugar on top before baking creates a beautiful sparkling crust and a subtle extra sweetness.

Mastering the Blueberry Lemon Blondie: A Step-By-Step Guide
Baking these blondies is a delightful process, and following these simple steps will ensure you achieve perfect results every time. Let’s get baking!
Preparation is Key
Before you begin mixing, preheat your oven to 350°F (175°C) and adjust your oven rack to the middle position. Prepare a 13×9 inch baking pan by lining it with parchment paper for easy removal, or simply spray it thoroughly with nonstick cooking spray. Setting up your workspace and ingredients beforehand makes the baking process smooth and enjoyable.
Step 1: The Buttery Base
In a small saucepan, gently melt the unsalted butter over medium heat until it’s completely liquid. Be careful not to brown it, unless you’re intentionally aiming for a browned butter flavor (which is delicious but not the goal for this recipe). Once melted, pour the warm butter into a large mixing bowl. Add the light brown sugar to the butter and stir vigorously with a rubber spatula until the sugar is fully dissolved and the mixture is smooth and glossy. This step is crucial for developing the blondies’ characteristic chewy texture.

Step 2: Wet Ingredients Unite
To the butter and sugar mixture, crack in your two large eggs. Mix thoroughly until they are well combined and fully incorporated into the batter. Next, add the freshly squeezed lemon juice, vibrant lemon zest, and vanilla extract. Continue to mix until all the wet ingredients are completely blended and the mixture is homogenous. The lemon zest will infuse a wonderful aromatic quality into the blondies.

Step 3: Whisking the Dry Components
In a separate medium bowl, combine the all-purpose flour, cornstarch, baking powder, and salt. Use a whisk to thoroughly combine these dry ingredients. Whisking ensures that the leavening agent (baking powder) and salt are evenly distributed throughout the flour, leading to a consistent rise and flavor in your blondies.

Step 4: Combining Wet and Dry with Blueberries
Add the majority of the flour mixture (reserve about one tablespoon) to the butter mixture. Mix gently with your rubber spatula until just combined. Be careful not to overmix, as this can develop the gluten and result in tough blondies. Next, sprinkle the reserved tablespoon of flour over your fresh blueberries and gently toss to coat them. This little trick helps prevent the blueberries from sinking to the bottom of the pan during baking. Carefully fold the flour-coated blueberries into the blondie dough until they are evenly distributed.


Step 5: Bake to Golden Perfection
Pour the prepared blondie batter into your greased or parchment-lined pan. Use a rubber or offset spatula to gently spread and smooth the top evenly. For an extra touch of beauty and crunch, sprinkle the top of the blondies with sliced almonds and a little pure cane sugar. This step is completely optional but adds a lovely texture and sparkle. Bake for approximately 22-25 minutes, or until the top is golden brown and a toothpick inserted into the center comes out with moist crumbs, not wet batter. Crucially, avoid overbaking, as this will result in dry blondies. I typically find 22 minutes to be perfect in my oven. Once baked, remove the pan from the oven and allow the blondies to cool completely on a wire rack before cutting them into squares. Patience is key here for clean, beautiful slices!


Serving Suggestions & Creative Variations
These Blueberry Lemon Blondies are undeniably delicious on their own, but they also lend themselves beautifully to various serving styles and creative twists. Here are some ideas to elevate your blondie experience:
- Simply Scrumptious: Enjoy them plain, perhaps alongside a freshly brewed cup of coffee or a refreshing glass of iced tea. Their vibrant flavors and chewy texture are more than enough to satisfy.
- A Scoop of Heaven: For an indulgent dessert, serve a warm blondie square with a generous scoop of vanilla bean ice cream. The cold, creamy ice cream melting into the warm blondie is a match made in heaven. Lemon sorbet also offers a delightful tangy contrast.
- Whipped Cream & Drizzle: A dollop of fresh whipped cream and a light drizzle of lemon glaze (powdered sugar mixed with a touch of lemon juice) can add an extra layer of elegance and flavor.
- Powdered Sugar Dust: A simple dusting of powdered sugar just before serving adds a beautiful finish and a hint of extra sweetness.
Variations to Try:
- White Chocolate Chip Bliss: Fold in a cup of white chocolate chips along with the blueberries for an extra layer of sweetness and a delightful textural contrast.
- Mixed Berry Magic: While blueberries are fantastic, feel free to experiment with other berries like raspberries or chopped strawberries for a mixed berry blondie delight.
- Nutty Crunch: In addition to, or instead of, sliced almonds, consider adding chopped walnuts or pecans to the batter for a richer, nuttier flavor profile.
The blueberry and lemon combination is a timeless classic for a reason – it’s always a winner! However you choose to serve them, these blondies are sure to impress and satisfy. Don’t hesitate to get creative and make them your own!
Expert Tips for Blondie Perfection
Achieving the perfect blondie is simple with a few insider tips. Keep these in mind to ensure your Blueberry Lemon Blondies turn out flawlessly every time:
- Choose Your Pan Wisely: Always opt for a metal baking pan when making blondies (or brownies). Metal pans conduct heat more efficiently and evenly than glass or ceramic, which is essential for uniform baking and achieving those desirable chewy edges without overbaking the center.
- Don’t Overbake! This is perhaps the most crucial tip for blondies. Overbaking is the quickest way to turn a perfectly chewy blondie into a dry, cake-like disappointment. Start checking your blondies at around 20 minutes. They are ready when the edges are golden brown and a toothpick inserted into the center comes out with moist crumbs, not wet batter. The center should still look a little soft and set as they will continue to cook slightly from residual heat once removed from the oven. For reference, I found 22 minutes to be ideal in my oven.
- Patience is a Virtue (Especially When Cooling): It can be tempting to cut into these warm, fragrant blondies right out of the oven, but resist the urge! Blondies, like most bar cookies, need time to set and firm up as they cool. Waiting until they reach room temperature will make them much easier to cut into clean, neat squares and ensures they hold their shape perfectly.
- Proper Flour Measurement: For accurate results, always spoon your all-purpose flour into the measuring cup and then level it off with a straight edge or knife. Scooping directly with the measuring cup can compact the flour, leading to using too much and resulting in dry, dense blondies.
- Room Temperature Eggs: Using room temperature eggs helps them incorporate more easily and evenly into the batter, creating a smoother emulsion and a more uniform texture in your finished blondies. If you forget to take them out ahead of time, place them in a bowl of warm water for 5-10 minutes.
- Storing Your Blondies: Store leftover blondies in an airtight container at room temperature for up to 3-4 days. For longer storage, you can freeze individual squares, wrapped tightly in plastic wrap and then placed in a freezer-safe bag, for up to 3 months. Thaw at room temperature before enjoying.
By keeping these simple tips in mind, you’ll be well on your way to baking batches of the most delicious, perfectly textured Blueberry Lemon Blondies every time!
More Delicious Fruity Dessert Recipes to Enjoy
If you’ve loved these vibrant Blueberry Lemon Blondies, you’ll certainly want to explore more fruity delights. Here are a few other recipes that celebrate the fresh flavors of nature, perfect for any season:
- Tropical Mango Almond Cake
- Key Lime Cracker Pie
- Simple Strawberry Cake
Each of these recipes offers a unique blend of freshness and sweetness, guaranteeing a delightful treat for your palate. Happy baking!
Blueberry Lemon Blondies
These Blueberry Lemon Blondies are buttery, soft and chewy and the perfect way to use up those extra sweet blueberries you’ve got this summer. Just delicious as a dessert, snack or alongside your morning tea or coffee.
Author: MaryAnn Dwyer
Servings: 12 servings
Prep Time: 20 mins
Cook Time: 35 mins
Total Time: 55 mins
Ingredients
- 3/4 cup (1 1/2 sticks) unsalted butter
- 1 1/2 cups light brown sugar, firmly packed
- 2 large eggs
- 2 Tbsp. freshly squeezed lemon juice
- 1 Tbsp. freshly grated lemon zest
- 1 Tbsp. vanilla extract
- 2 cups all-purpose flour, measured correctly (spoon into measuring up and level off with a knife)
- 2 tsp. corn starch
- 1 tsp. baking powder
- 1/2 tsp. salt
- 1 1/4 cup fresh blueberries
- 1/4 cup sliced almonds, optional
- 2 tsp. pure cane sugar, optional
Instructions
- Preheat oven to 350 degrees F (175°C). Adjust oven rack to middle position. Line your 13×9 pan with parchment paper or spray with nonstick cooking spray. Set the pan aside.
- Melt your butter in a small saucepan over medium heat, then add the melted butter to a large bowl. Stir in your brown sugar and mix with a rubber spatula until the sugar is dissolved and the mixture is smooth.
- Add your two eggs and mix until well combined, followed by your lemon juice, lemon zest, and vanilla extract. Mix again until well combined.
- Add your flour to a bowl followed by your cornstarch, baking powder, and salt and whisk until well combined. Add the flour mixture (minus one tablespoon) to the butter mixture until just combined. Sprinkle the one tablespoon of flour over the blueberries and toss to coat, then fold into the dough.
- Add the batter to your prepared pan and smooth the top with a rubber or offset spatula. Before baking, you may sprinkle the top of the blondies with some sliced almonds for some crunch and a little bit of pure cane sugar. This is totally optional. Bake until the top is golden brown, about 22-25 minutes. Do not overbake. Cool on a wire rack and then cut into squares.
Notes
- You will want to use a metal pan to make these blondies because a metal pan conducts heat more efficiently, which leads to more even baking.
- Everyone’s oven is a bit different, so check your blondies at 20 minutes. You do not want to overbake.
- These will be easier to cut if you wait until they’re cooled to room temperature.
Keyword: bar cookies, blondie bars, blueberries, summer recipes
Cuisine: American
Course: Breakfast, Dessert, Snack
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