For Everyone Who Loves a Pucker

My dad has always said a dessert isn’t worth eating unless it makes you squint a little, so I built this pan with him in mind.

Learn more about DanyRecipes and why I bake for every kind of sweet tooth. These raspberry lemon bars lean tart, with a sharp lemon custard and a layer of juicy raspberries that keeps every bite bright and fruity.

Why These Bars Are Proudly Tart

Less sugar and extra lemon juice keep the custard zippy, while a layer of raspberries baked right into the crust adds fruity depth without making the bars sweet. The shortbread base balances the tang so each square feels bold but not harsh.

This lemon bars recipe fits a standard 9×13 pan and makes a generous batch for sharing. It is one of my favorite lemon desserts for people who like their sweets sharp, and it pairs nicely with my chewy thumbprint lemon curd cookies on a dessert table.

Tart and Fruity Ingredients

For the crust:

• 2 cups all purpose flour
• 1/2 cup powdered sugar, plus extra for dusting
• 1/4 teaspoon fine salt
• 1 cup (2 sticks) cold unsalted butter, cubed

For the raspberry layer:

• 2 cups fresh or frozen raspberries
• 2 tablespoons granulated sugar
• 1 tablespoon cornstarch

For the tart lemon filling:

• 1 1/2 cups granulated sugar
• 4 large eggs, at room temperature
• 3/4 cup fresh lemon juice (about 5 lemons), strained
• 2 tablespoons lemon zest, finely grated
• 1/4 cup all purpose flour
• Pinch of salt

Easy Steps to Tart Raspberry Bars

STEP 1

Heat the oven to 350°F and line a 9×13 pan with parchment, leaving an overhang on two sides.

STEP 2

Whisk the flour, powdered sugar, and salt, then cut in the cold butter until soft, damp crumbs form.

STEP 3

Press the dough firmly into the pan and bake for 18 to 20 minutes until lightly golden.

STEP 4

Toss the raspberries with the sugar and cornstarch, then scatter them over the warm crust in an even layer.

STEP 5

Whisk the sugar, eggs, lemon juice, zest, flour, and salt until smooth, pour it gently over the berries, and bake for 28 to 32 minutes until the center barely wobbles.

STEP 6

Cool on a rack, chill for at least 3 hours, then dust with powdered sugar and slice into squares.

Serving Ideas and Easy Twists

• Serve chilled with a spoonful of sweetened whipped cream to soften the tang.
• Top with fresh raspberries and a curl of lemon zest.
• Pair with my crispy shortbread lemon curd cookies for a buttery crunch beside the tart bars.
• Add a tablespoon of honey to the filling if you want a gentler bite.
• Cut into small squares, since the flavor is bold.

Pro Tips

• Pour the filling slowly over the berries so they stay in an even layer.
• Use frozen raspberries straight from the freezer to avoid extra juice.
• Strain the lemon juice so seeds and pulp do not disturb the smooth custard.
• Pull the pan when the center still wobbles, since it firms up as it chills.
• Chill for a full 3 hours so the fruity layer sets and slices cleanly.
• Dust with powdered sugar right before serving so it stays bright white.

Tart and Fruity Raspberry Lemon Bars

These raspberry lemon bars feature a buttery shortbread crust, a juicy layer of raspberries, and a sharp lemon custard filling. Made with extra lemon juice and less sugar for a bold, tangy flavor, they are perfect for anyone who loves tart desserts.

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Prep Time 20 minutes mins

Cook Time 50 minutes mins

Chilling Time 3 hours hrs

Total Time 4 hours hrs 10 minutes mins

Servings: 24 bars

Course: Bars, Dessert

Cuisine: American

Ingredients Equipment Method Notes

Ingredients

  

Shortbread Crust

• 2 cups all-purpose flour
• 1/2 cup powdered sugar plus extra for dusting
• 1/4 tsp fine salt
• 1 cup unsalted butter 2 sticks, cold and cubed

Raspberry Layer

• 2 cups raspberries fresh or frozen
• 2 tbsp granulated sugar
• 1 tbsp cornstarch

Tart Lemon Filling

• 1 1/2 cups granulated sugar
• 4 large eggs at room temperature
• 3/4 cup fresh lemon juice about 5 lemons, strained
• 2 tbsp lemon zest finely grated
• 1/4 cup all-purpose flour
• 1 pinch salt

Equipment

• 9×13-inch Baking Pan
• Parchment paper
• Mixing bowls
• Whisk
• Pastry Cutter
• Wire Cooling Rack

Method

 

1. Preheat the oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving an overhang on two sides for easy removal.
2. Whisk together the flour, powdered sugar, and salt for the crust. Cut in the cold cubed butter until soft, damp crumbs form.
3. Press the crust mixture firmly and evenly into the prepared pan. Bake for 18–20 minutes, until lightly golden.
4. Toss the raspberries with the granulated sugar and cornstarch until evenly coated. Scatter them over the warm baked crust in an even layer.
5. Whisk together the granulated sugar, eggs, lemon juice, lemon zest, flour, and salt until smooth. Gently pour the lemon filling over the raspberry layer.
6. Bake for 28–32 minutes, until the center barely wobbles when the pan is gently nudged.
7. Transfer the pan to a wire rack and let it cool completely. Refrigerate for at least 3 hours to allow the filling and raspberry layer to set.
8. Dust with powdered sugar just before serving. Lift the bars out using the parchment overhang and slice into squares.

Notes

Serve chilled with sweetened whipped cream, fresh raspberries, or extra lemon zest. For a milder flavor, add 1/4 cup more sugar to the filling or a tablespoon of honey. Blackberries or blueberries can replace the raspberries in the same quantity. Use frozen raspberries straight from the freezer to avoid excess moisture. Store covered in the refrigerator for up to 4 days, placing parchment between layers. Freeze undusted bars, tightly wrapped, for up to 2 months and thaw overnight in the refrigerator. For clean slices, chill for the full 3 hours and dust with powdered sugar just before serving.

FAQs

Are these bars too sour?
They are tart by design, but the shortbread crust and powdered sugar dusting balance the pucker. Add 1/4 cup more sugar to the filling for a milder bar.

How should I store the bars?
Cover and refrigerate for up to 4 days, with parchment between layers. Berries add moisture, so they are best within that window.

Can I freeze them?
Yes, freeze the undusted bars wrapped tightly for up to 2 months. Thaw overnight in the fridge before serving.

Can I use other berries?
Yes, blackberries or blueberries work in the same amount. Blueberries will give a sweeter, deeper purple layer.

Why is my filling runny?
It likely needed a few more minutes in the oven or a longer chill. The center should barely wobble when you nudge the pan.

A Little Pucker, A Lot of Joy

Some of the best desserts are the ones that wake up your taste buds. I hope these bars win over every tart lover at your table. For more citrus treats, try my melt in your mouth lemon curd cookies, the 5 ingredient glazed lemon curd cookies, or the zesty drop lemon curd cookies.

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