Lemon Blueberry Streusel Bars

There’s something irresistibly delightful about the combination of tart lemons and sweet blueberries, especially when they come together in these mouthwatering Lemon Blueberry Streusel Bars. With a buttery crust, a creamy lemon filling, and a crumbly streusel topping, these bars are a perfect treat for any occasion. Whether you’re serving them at a gathering, enjoying them with a cup of tea, or simply indulging yourself, these bars are sure to impress. Let’s dive into what makes these bars so special!

Top Reasons to Make Lemon Blueberry Streusel Bars

• Flavor Explosion: The bright, zesty lemon perfectly balances the sweetness of the blueberries.
• Texture Contrast: The buttery, crumbly crust and the smooth filling create a delightful textural experience.
• Easy to Make: This recipe is straightforward and can be prepared in under an hour!
• Perfect for Sharing: These bars cut easily and are great for gatherings, potlucks, or a simple family dessert.
• Seasonal Delight: Fresh blueberries in season make these bars even more special and vibrant.

What Goes Into Lemon Blueberry Streusel Bars

• 1 cup (2 sticks) unsalted butter, at room temperature: This provides a rich base for the crust and streusel topping.
• 3 cups all-purpose flour: The main structure of the crust and streusel.
• 1 cup old-fashioned rolled oats: Adds texture and a wholesome flavor; avoid quick cook oats for best results.
• 1 1/3 cups packed light brown sugar: Sweetens the bars and adds a hint of caramel flavor.
• 1 teaspoon salt: Balances the sweetness and enhances the overall flavor.
• 1 teaspoon baking powder: Provides lift to the crust and filling.
• 1 large egg (separated): The yolk enriches the filling, while the white helps bind the crust.
• 1 (14-ounce) can sweetened condensed milk: Creates a creamy, luscious filling.
• 1/2 cup freshly squeezed lemon juice: The star ingredient that gives these bars their signature tang.
• 2 teaspoons grated lemon zest: Adds an extra burst of lemon flavor.
• 2 cups room temperature blueberries: Fresh, juicy blueberries are essential for that fruity filling.

Gear Up: What to Grab

• Baking Dish: A 9×13-inch pan works best for these bars.
• Mixing Bowls: You’ll need a few different sizes for mixing the crust, filling, and streusel.
• Whisk: For combining the ingredients smoothly.
• Measuring Cups and Spoons: Accurate measurements are crucial for baking success.
• Spatula: Perfect for spreading the filling and topping evenly.

Lemon Blueberry Streusel Bars: Step-by-Step Guide

Step 1: Preheat Your Oven

Start by preheating your oven to 350°F (175°C). This ensures that your bars bake evenly and come out perfectly golden.

Step 2: Prepare the Baking Dish

Grease a 9×13-inch baking dish with butter or line it with parchment paper for easy removal.

Step 3: Make the Crust

In a large bowl, cream together the room temperature butter and light brown sugar until light and fluffy. Add in the egg yolk, salt, and baking powder, mixing until well combined. Gradually add the flour and oats, stirring until a crumbly mixture forms.

Step 4: Press the Crust into the Pan

Take about two-thirds of the crust mixture and press it evenly into the bottom of your prepared baking dish. This will serve as the base for your bars.

Step 5: Create the Lemon Filling

In another bowl, whisk together the sweetened condensed milk, freshly squeezed lemon juice, grated lemon zest, and the separated egg white until smooth. Make sure to incorporate all ingredients thoroughly.

Step 6: Add the Blueberries

Gently fold in the fresh blueberries into the lemon filling. Be careful not to crush the berries; you want to keep them whole for bursts of flavor.

Step 7: Assemble the Bars

Pour the lemon blueberry filling over the crust in the baking dish. Spread it out evenly.

Step 8: Add the Streusel Topping

Crumble the remaining crust mixture over the top of the lemon filling. This will create a delicious streusel topping.

Step 9: Bake

Bake in the preheated oven for 35-40 minutes, or until the top is golden and the filling is set. A toothpick inserted into the center should come out clean.

Step 10: Cool and Slice

Allow the bars to cool completely in the pan before slicing them into squares. This will help them hold their shape better.

Tailor It to Your Diet

• Gluten-Free: Substitute the all-purpose flour with a gluten-free blend.
• Vegan: Replace the butter with coconut oil and use a flax egg instead of the egg.
• Nut-Free: Ensure your ingredients do not contain any nuts, especially in the flour blend.
• Lower Sugar: Use a sugar substitute suitable for baking to reduce the overall sugar content.

Chef’s Rationale

These Lemon Blueberry Streusel Bars are not just a treat; they embody a perfect balance of flavors and textures. The tartness of the lemon complements the sweetness of the blueberries, while the buttery crust and streusel offer a satisfying crunch. This recipe is a celebration of seasonal ingredients and showcases how simple elements can come together to create something extraordinary. Plus, the easy preparation makes them a go-to dessert for any occasion.

Cooling, Storing & Rewarming

Once you’ve cooled the bars completely, you can store them in an airtight container at room temperature for up to three days. If you want to keep them longer, refrigerate them for up to a week. To rewarm, simply pop them in the microwave for a few seconds or enjoy them cold. The flavors will continue to develop, making them even more delicious over time.

Reader Questions

Can I use frozen blueberries instead of fresh?

Yes, you can use frozen blueberries! Just be sure to thaw and drain them before adding to the filling to avoid excess moisture.

What can I substitute for sweetened condensed milk?

You can use a homemade version by simmering milk and sugar together until thickened, or use a dairy-free alternative like coconut condensed milk.

Can I make this recipe ahead of time?

Absolutely! You can prepare the bars a day in advance. Just keep them covered in the refrigerator and bring them to room temperature before serving.

How do I know when the bars are done baking?

The bars are done when the top is golden brown and a toothpick inserted into the center comes out clean. Keep an eye on them towards the end of baking!

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Time to Try It

These Lemon Blueberry Streusel Bars are calling your name! With their delightful flavor, easy preparation, and crowd-pleasing appeal, they’re destined to become a favorite in your baking repertoire. Grab your ingredients, gather your gear, and let’s make some delicious memories in the kitchen with these irresistible bars. Happy baking!