Lemon Crumb Bars Recipe (Bright, Buttery & Irresistible)

These lemon crumb bars strike the perfect balance between tart and sweet. The buttery shortbread crust provides a sturdy base while the zesty lemon filling delivers bright, refreshing flavor in every bite.

The crumbly streusel topping adds delightful texture and makes these bars irresistible. They’re easier than lemon bars from scratch and require no special equipment or complicated techniques.

Perfect for potlucks, spring gatherings, or weekend baking projects. These bars slice cleanly, transport well, and disappear fast from any dessert table.

What Makes These Bars Special

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Unlike traditional lemon bars, these feature a generous crumb topping that adds extra buttery goodness. The filling uses fresh lemon juice and zest for authentic citrus flavor that tastes like sunshine.

The recipe uses pantry staples you likely already have on hand. No corn starch or complicated custard techniques required, just straightforward baking that delivers consistent results.

These bars offer make ahead convenience since they actually taste better after chilling overnight. The flavors meld together and the texture becomes perfectly firm for clean slicing.

Key Ingredients You’ll Need

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For the crust and crumb topping:

For the lemon filling:

You can find similar citrus recipes at Easy Pecan Pie Bars (Lazy Girl Recipe) or explore more bar desserts at Lemon Crumb Bars

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Ultimate Lemon Crumb Bars Recipe (Bright, Buttery & Irresistible)

Recipe by Emma BrooksCourse: DessertCuisine: AmericanDifficulty: Easy

Servings

16

bars

Prep time

1

hour 

5

minutes

Cooking time

2

hours 

Total time

3

hours 

5

minutes

Buttery lemon bars with shortbread crust and sweet crumble topping. These tangy, citrusy bars are perfect for any occasion.

Ingredients

• For the Crust and Topping

• 2 cups all purpose flour

• 1/2 cup granulated sugar

• 2 tablespoons brown sugar

• 1/4 teaspoon salt

• 3/4 cup cold unsalted butter, cubed

• For the Lemon Filling

• 4 large eggs

• 1 and 1/2 cups granulated sugar

• 1/3 cup fresh lemon juice

• 2 tablespoons lemon zest

• 1/4 cup all purpose flour

Directions

• Preheat oven to 350°F. Line 9×13 inch pan with parchment paper.
• Mix flour, sugar, and salt. Cut in cold butter until crumbly. Press 2/3 of mixture into pan bottom.
• Bake crust 15 to 18 minutes until lightly golden. Keep oven on.
• Whisk eggs, sugar, lemon juice, zest, and flour until smooth.
• Add brown sugar to reserved crumb mixture and create clumps.
• Pour filling over warm crust. Sprinkle crumb topping over filling.
• Bake 25 to 30 minutes until filling is set and topping is golden.
• Cool completely, then refrigerate 2 hours before slicing.

Notes

• Storage: Keep refrigerated in airtight container for up to 5 days. Freeze for up to 3 months.
  Make Ahead: These taste even better the next day after flavors meld. Prepare completely and store covered in the fridge.
  Swaps: Use lime juice and zest for lime crumb bars. Add 1/2 teaspoon vanilla extract to filling for extra flavor depth.
  Clean Slicing Tip: Wipe knife clean between cuts and use the parchment overhang to lift bars out before slicing.

Nutrition Information (Per Serving)

Step by Step Instructions

Step 1: Prepare the Crust Base

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Preheat your oven to 350°F and line a 9×13 inch baking pan with parchment paper, leaving overhang on the sides for easy removal. In a large mixing bowl, combine 2 cups all purpose flour, 1/2 cup granulated sugar, and 1/4 teaspoon salt.

Add 3/4 cup cold cubed butter to the flour mixture. Use a pastry cutter or fork to cut the butter into the dry ingredients until the mixture resembles coarse crumbs with pea sized pieces. Press two thirds of this mixture firmly into the bottom of your prepared pan, creating an even layer. Reserve the remaining third for the topping later.

Step 2: Blind Bake the Crust

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Place the pan with the pressed crust into your preheated oven. Bake for 15 to 18 minutes until the edges just begin to turn light golden brown and the surface looks set but not dark.

This partial baking step is crucial because it prevents a soggy bottom once you add the wet lemon filling. The crust should feel dry to the touch when you remove it from the oven. Let it cool for about 5 minutes while you prepare the filling, keeping the oven on at 350°F.

Step 3: Make the Lemon Filling

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In a medium bowl, whisk together 4 large eggs and 1 and 1/2 cups granulated sugar until well combined and slightly frothy. Add 1/3 cup fresh lemon juice, 2 tablespoons lemon zest, and 1/4 cup all purpose flour, whisking until the mixture is smooth and no lumps remain.

The flour helps thicken the filling as it bakes, creating that perfect custard-like consistency. Make sure your lemon juice is freshly squeezed for the brightest, most authentic flavor. The zest adds aromatic oils that intensify the lemon taste throughout the bars.

Step 4: Prepare the Crumb Topping

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Take the reserved crumb mixture you set aside earlier and mix in 2 tablespoons of brown sugar for extra flavor and moisture. Use your fingers to create larger, irregular clumps by squeezing handfuls of the mixture together.

The clumps should vary in size from small pebbles to larger chunks about the size of a marble. This varied texture creates the most appealing crumbly topping once baked. Keep the mixture cold until you’re ready to use it, as cold butter creates the best crumb texture.

Step 5: Assemble and Bake

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Pour the lemon filling over the warm pre-baked crust, using a spatula to spread it evenly into all corners. Immediately sprinkle the crumb topping evenly over the entire surface of the lemon filling, covering it as much as possible but leaving some filling visible for visual appeal.

Return the pan to the 350°F oven and bake for 25 to 30 minutes. The bars are done when the filling is set around the edges but still has a slight jiggle in the center, and the crumb topping is golden brown. Let cool completely at room temperature for 1 hour, then refrigerate for at least 2 hours or overnight before slicing for the cleanest cuts.

Frequently Asked Questions