Bright, fresh, and bursting with fruity goodness, these Lemon Blueberry Bars are a dreamy treat for anyone who loves the sweet-tart combo of citrus and berries. They start with a buttery shortbread crust, get filled with a luscious lemon-blueberry custard, and finish with a delicate dusting of powdered sugar. Each bite is rich, tangy, and balanced by a sweet blueberry burst.

This dessert is perfect for spring brunches, summer potlucks, or just as a sweet moment of joy with your morning coffee. They feel elegant enough for guests but are simple enough to whip up whenever the craving hits. Whether you chill them to enjoy cold or serve them slightly warm, these bars are guaranteed to disappear quickly.

Why You’ll Love This Lemon Blueberry Bars Recipe

These bars are a celebration of contrast: buttery and crisp crust, silky lemon filling, and juicy blueberries that burst with flavor. The recipe is beginner-friendly and uses basic ingredients, yet the results taste like something from a bakery. Plus, you can make them ahead, and they keep beautifully in the fridge for a few days, making them a perfect make-ahead treat.

What Kind of Blueberries Should I Use?

Both fresh and frozen blueberries work great in this recipe. Fresh berries offer a firmer bite and vibrant color, while frozen ones can bleed into the custard a bit, giving it a beautiful marbled look. If using frozen, don’t thaw them first to prevent excess moisture. If it’s summer and blueberries are in season, definitely go fresh!

Ingredients for the Lemon Blueberry Bars

The ingredients in this recipe are straightforward, but each one plays a key role in the overall flavor and texture.

All-purpose flour: Used in both the crust and the filling, this gives structure to the bars.
Granulated sugar: Adds sweetness to both the crust and lemon filling.
Unsalted butter: Creates that rich, melt-in-your-mouth shortbread base.
Eggs: Help thicken the filling and give it a silky custard-like consistency.
Lemon juice: The star of the filling, bringing tartness and brightness.
Lemon zest: Enhances the lemon flavor and adds a fragrant aroma.
Blueberries: Juicy bursts of sweetness that balance the tangy lemon.
Powdered sugar: For dusting the top and giving a pretty, bakery-style finish.

How To Make the Lemon Blueberry Bars

Step 1: Make the Shortbread Crust

Preheat your oven and line an 8×8-inch baking dish with parchment paper. In a bowl, mix flour, sugar, and melted butter until crumbly. Press the mixture evenly into the bottom of the pan and bake until lightly golden.

Step 2: Prepare the Lemon Filling

While the crust cools slightly, whisk together eggs, sugar, lemon juice, lemon zest, and flour until smooth. Gently fold in the blueberries. Pour the mixture over the pre-baked crust.

Step 3: Bake the Bars

Return the pan to the oven and bake until the filling is set and just slightly jiggly in the center. Let the bars cool completely before refrigerating for a few hours to fully set.

Step 4: Serve and Dust

Once chilled, lift the bars out using the parchment paper, cut into squares, and dust with powdered sugar just before serving.

How to Store and Serve Lemon Blueberry Bars

These bars are best served chilled or at room temperature, and they feed about 9 to 12 people depending on how you slice them. Store them in an airtight container in the refrigerator for up to 4 days. They also freeze well; just wrap each square tightly and store in a freezer-safe container for up to 2 months. Thaw in the fridge overnight before enjoying.

What to Serve With Lemon Blueberry Bars?

Fresh Whipped Cream

A light dollop of unsweetened whipped cream adds a soft contrast to the zingy lemon.

Vanilla Bean Ice Cream

If you’re serving these bars for dessert, a scoop of creamy vanilla bean ice cream makes them extra indulgent.

Iced Coffee or Cold Brew

The smooth bitterness of coffee cuts the sweetness and makes for a balanced afternoon treat.

Hot Herbal Tea

Chamomile or mint tea pairs nicely, letting the citrus and berries shine.

Sparkling Water with Lemon

A refreshing, fizzy drink that enhances the bars’ fruity brightness.

Greek Yogurt

A spoonful of plain Greek yogurt can turn these bars into a fancy breakfast bite.

Fresh Berry Salad

Make a berry medley with strawberries, raspberries, and blackberries for a colorful plate.

Want More Dessert Ideas with a Fruity Twist?

If you’re loving these lemon blueberry bars, you might want to check out these bright and flavorful treats too:

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And let me know in the comments how yours turned out. Did you go fresh or frozen with the berries? Did you try any twists like a graham cracker crust?

I love seeing how others bring their creativity into these recipes. Drop your thoughts, questions, or serving suggestions below!

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Conclusion

Lemon Blueberry Bars strike that perfect balance between sweet and tangy, buttery and bright. With just a handful of pantry ingredients, you can whip up a dessert that feels special yet is effortless to make. Whether you’re sharing them at a gathering or enjoying one solo with your afternoon tea, these bars are a ray of sunshine on a plate.