Name: Blueberry Lemon Blondies with White Chocolate and Streusel Topping Recipe
Prep time: 15 min
Cook time: 50 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 1 cup plain flour (all-purpose flour) (130g / ~4½oz); ½ cup almond flour (almond meal) (60g); ½ cup granulated white sugar (100g / 3½oz); ½ cup light brown sugar, packed (100g / 3½oz); ¼ teaspoon baking powder; ¼ teaspoon salt; 2 large eggs (lightly beaten); 113 g unsalted butter (melted, ½ cup / 1 stick); 50 g white chocolate (melted, 1.8oz); 1 tablespoon lemon juice; 2 teaspoons lemon zest (not packed); 1 teaspoon vanilla extract; 1 cup fresh blueberries (150g / 5.3oz); 57 g unsalted butter (2oz / ¼ cup / 4 tablespoons); 4 tablespoons white granulated sugar; 65 g plain flour (all-purpose flour) (2.3oz / ½ cup); ½ cup fresh blueberries (reserved from batter); ½ cup icing sugar (powdered sugar); 2 teaspoons lemon juice

Print Recipe· 4.1 from 3 reviews

If you are looking for a dessert that bursts with vibrant flavors and a delightful combination of textures, this Blueberry Lemon Blondies with White Chocolate and Streusel Topping Recipe is an absolute showstopper. Imagine moist, buttery blondies infused with zesty lemon and studded with fresh blueberries, all elevated by creamy white chocolate swirls and a crisp, crumbly streusel topping. It’s a truly irresistible treat that balances sweetness and tartness perfectly, making it a standout choice for any occasion where you want to impress your friends or simply indulge yourself a little.

Ingredients You’ll Need

A glass bowl filled with beige cookie dough mixed with scattered small dark chocolate chips, showing a thick and soft texture. A spatula with a light wooden handle and a black silicone tip is resting inside the bowl, partly covered with dough on the tip. A metal whisk with a black handle is placed next to the bowl on a white marbled surface. The photo is taken from above with an iphone --ar 4:5 --v 7

These ingredients are wonderfully simple yet essential, each bringing its unique element to make these blondies the perfect balance of flavor, richness, and texture. From the slight nuttiness of almond flour to the freshness that lemon zest and juice add, every component shines through beautifully.

1 cup plain flour (130g / ~4½oz): The base that gives structure and a tender crumb to the blondies.
½ cup almond flour (60g): Adds subtle nuttiness and softness to the batter.
½ cup granulated white sugar (100g / 3½oz): Sweetens the blondies while helping create a slight crisp on top.
½ cup light brown sugar, packed (100g / 3½oz): Brings moistness and depth with its caramel notes.
¼ teaspoon baking powder: Gives a gentle lift to the blondie texture.
¼ teaspoon salt: Enhances all the flavors, balancing sweetness.
2 large eggs (lightly beaten): Bind everything together and add moisture.
113 g unsalted butter (melted, ½ cup / 1 stick): Provides richness and that irresistibly soft crumb.
50 g white chocolate (melted, 1.8oz): Melts into creamy pockets, adding luscious sweetness.
1 tablespoon lemon juice: Injects fresh citrus brightness throughout the blondies.
2 teaspoons lemon zest: Intensifies the lemon flavor without extra liquid.
1 teaspoon vanilla: Rounds out the citrus notes with warm undertones.
1 cup fresh blueberries (150g / 5.3oz): Bursts with juicy tartness in every bite.
57 g unsalted butter (2oz / ¼ cup / 4 tablespoons) for streusel: Joins the dry ingredients to create a buttery topping.
4 tablespoons white granulated sugar: Sweetens the streusel and contributes to its crisp texture.
65 g plain flour (2.3oz / ½ cup) for streusel: Forms the crumbly base of the streusel topping.
½ cup icing sugar (powdered sugar) for lemon icing: Turns into a silky glaze when mixed with lemon juice.
2 teaspoons lemon juice for lemon icing: Adds tanginess to balance the sweetness of the glaze.

How to Make Blueberry Lemon Blondies with White Chocolate and Streusel Topping Recipe

Step 1: Prep and Mix the Dry Ingredients

Start by preheating your oven to 180C (160C fan forced) or 350F, and line an 8×8 inch square baking tin with baking paper to make removal easy. In a large bowl, whisk together the plain flour, almond flour, both sugars, baking powder, and salt until the mixture is lump-free—this ensures an even distribution of leavening and sweetness throughout your blondie batter.

Step 2: Combine Wet Ingredients and Create Batter

Make a well in the center of the dry ingredients and add lightly beaten eggs, melted butter, melted white chocolate, lemon juice, lemon zest, and vanilla. Use a spatula to gently fold everything together until just combined. It’s important not to overmix to keep the blondies tender and moist.

Step 3: Fold in Blueberries and Pour Batter

Carefully fold in half of the fresh blueberries only 2 to 3 times to prevent their juices from bleeding into the batter too much. Then pour the batter into your prepared pan, smoothing it out evenly with your spatula.

Step 4: Add Remaining Blueberries

Scatter most of the remaining blueberries across the top of the batter, gently pressing some of them down so they nestle into the surface. Hold back a few berries for an eye-catching burst on top of the streusel later.

Step 5: Make and Scatter the Streusel Topping

Mix the streusel ingredients—unsalted butter, granulated sugar, and plain flour—in a bowl. Use your fingertips to press the butter into the dry ingredients until you get a crumbly mixture with some clumps. Don’t press it down on the blondies; scatter it evenly over the batter. Finally, sprinkle the reserved blueberries on top for that perfect finishing touch.

Step 6: Bake Until Golden

Bake the blondies for 45 to 50 minutes. The edges should turn a golden color, and the center will set without wobbling. Keep in mind that the baking time may vary as ovens differ, so keep an eye on your dessert as it bakes to avoid drying out the blondies.

Step 7: Cool and Finish with Lemon Icing

Once baked, allow your Blueberry Lemon Blondies with White Chocolate and Streusel Topping Recipe to cool in the pan for at least 45 minutes. This step is crucial because it lets the blondies firm up, making them easier to cut into neat squares. After cooling, whisk together the icing sugar and lemon juice to make a smooth glaze, then drizzle it over the blondies for a tangy, sweet finishing touch.

How to Serve Blueberry Lemon Blondies with White Chocolate and Streusel Topping Recipe

The image shows a square baking pan lined with white parchment paper, filled with a crumbly dessert before baking. The dessert has three layers: the bottom layer is not visible, the middle layer consists of scattered dark blueberries peeking through, and the top layer is a light yellow crumb topping made of uneven small chunks, giving it a rough texture. The pan is placed on a white marbled surface with a few crumbs scattered around. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Elevation is in the details. Sprinkle a little additional lemon zest or powdered sugar on top just before serving to enhance the presentation. Fresh mint leaves can add a pop of green and a fresh aroma that complements the lemon and blueberry flavors marvelously.

Side Dishes

Pair your blondies with a scoop of vanilla ice cream or a dollop of whipped cream to balance their light tartness with creamy richness. A cup of hot tea or a fresh lemonade makes a perfect beverage companion, brightening your snack or dessert experience.

Creative Ways to Present

Serve these blondies on a rustic wooden board surrounded by scattered fresh blueberries and lemon slices to really make them the star of your dessert table. For a fancy occasion, cut them into mini squares and place on a tiered cake stand for a delightful, bite-sized treat that will have guests reaching for seconds.

Make Ahead and Storage

Storing Leftovers

You can store leftover Blueberry Lemon Blondies with White Chocolate and Streusel Topping Recipe in an airtight container at room temperature for up to three days. Keeping them covered helps preserve their tender texture and keeps the blueberries juicy.

Freezing

If you want to save these blondies for later, freeze them in a single layer on a baking sheet first. Once frozen solid, transfer them to a freezer-safe container or zip-lock bag, separating layers with parchment paper. They will keep their flavor and texture for about two months.

Reheating

To enjoy them warm, thaw frozen blondies at room temperature and then heat briefly in the microwave for 15 to 20 seconds or in a preheated oven at 160C (320F) for 5 to 7 minutes. This revives their soft, melty charm as if freshly baked.

FAQs

Can I use frozen blueberries instead of fresh?

Absolutely! Frozen blueberries work well if fresh aren’t available. Just thaw and drain them before folding into the batter to prevent excess moisture from making the blondies soggy.

Is almond flour necessary in this Blueberry Lemon Blondies with White Chocolate and Streusel Topping Recipe?

While it’s not mandatory, almond flour provides a lovely subtle nuttiness and tender texture that complements the lemon and blueberries beautifully, making your blondies extra special.

Can this recipe be made gluten-free?

Yes, by substituting the plain flour with a gluten-free all-purpose flour blend and ensuring your baking powder is gluten-free, you can enjoy these blondies without gluten.

What if I don’t have white chocolate? Can I omit it?

White chocolate adds a creamy sweetness that balances the tartness of lemon and blueberries, but if you don’t have any, you can skip it or substitute with white chocolate chips or even cream cheese for a different twist.

How do I know when the blondies are perfectly baked?

The edges should be golden and set, and the center should no longer wobble when you gently shake the pan. Inserting a toothpick that comes out with a few moist crumbs is a good indicator that your blondies are just right.

Final Thoughts

Trust me, once you try this Blueberry Lemon Blondies with White Chocolate and Streusel Topping Recipe, it will quickly become a favorite in your baking repertoire. The bright freshness from the lemon, juicy bursts of blueberry, and that indulgent white chocolate paired with the crunchy streusel make these blondies an absolute joy to eat. Don’t hesitate to share this recipe with friends or keep it all to yourself—you deserve that sweet treat!