These easy classic lemon bars have a smooth, creamy filling and a simple shortbread crust that slices cleanly every time. Bright, fresh, and perfectly balanced between sweet and tart.
These classic lemon bars are one of those desserts that never go out of style. The filling is smooth and creamy with a bright lemon flavor, and the shortbread crust holds together beautifully without being too thick or too thin. After testing a few versions, this is the one I keep coming back to—it’s simple, reliable, and turns out just right every time.
Why You’ll Love This Recipe
- Perfect balance of sweet and tart
Bright lemon flavor without being overly sharp or too sweet. - Smooth, creamy filling
A mix of whole eggs and yolks gives you a softer, more custard-like texture without an eggy taste. - A simple shortbread crust that holds together
Sturdy enough to slice cleanly, but still tender when you bite into it. - Straightforward method
No complicated steps—just a few small techniques that make a big difference. - Great for make-ahead desserts
They slice best when chilled, so they’re perfect for prepping in advance.
Ingredients for Lemon Bars
For the Crust
- Unsalted butter (room temperature) – gives the crust its soft, shortbread texture
- Granulated sugar – just enough sweetness without overpowering
- All-purpose flour – structure for the crust
- Sea salt – balances the sweetness and enhances flavor
For the Filling
- Large eggs + egg yolks – create a smooth, rich filling
- Granulated sugar – sweetens and balances the lemon
- All-purpose flour – helps the filling set cleanly
- Fresh lemon juice – the main flavor—fresh is best here
- Lemon zest – adds extra brightness and depth
- Powdered sugar (for dusting) – optional, but classic
How to Make Lemon Bars (Step-by-Step)
1. Press the crust into the pan
After mixing the dough, press it evenly into the prepared pan to create a smooth layer. Greasing the pan before lining with parchment helps keep the paper in place while you press the dough down.
2. Bake until lightly golden
Bake the crust until the edges are lightly golden and the center looks set. Let it cool slightly while you prepare the filling.
3. Strain and mix the filling
Whisk the eggs and egg yolks together, then strain through a fine-mesh sieve to remove any bits of egg. In a separate bowl, whisk together the sugar and flour, then stir in the fresh lemon juice until smooth. Add the lemon zest and strained eggs and mix until fully combined.
4. Pour the filling over the crust
Slowly pour the lemon filling over the baked crust and transfer the pan carefully to the oven.
5. Bake until just set
Bake until the center is just set with a slight jiggle. The bars will continue to firm up as they cool.
6. Chill before slicing
Let the lemon bars cool completely, then refrigerate until fully chilled before cutting. Dust with powdered sugar just before serving for the cleanest finish.
FAQ
Here are a few helpful tips and answers to common questions before you get started.
Why are my lemon bars runny?
They likely weren’t baked long enough or didn’t chill fully. The center should be just set before removing from the oven, and they need time in the refrigerator to firm up.
Why do lemon bars sometimes taste eggy?
Using too many egg whites or overbaking can cause that. Using a mix of whole eggs and yolks helps create a smoother, less eggy flavor.
Can I use bottled lemon juice?
Fresh lemon juice is best for flavor. Bottled juice can taste flat or slightly bitter.
Do lemon bars need to be refrigerated?
Yes. Because of the egg-based filling, they should be stored in the refrigerator.
How long do lemon bars last?
They’ll keep well in the refrigerator for up to 4–5 days in an airtight container.
Why are my lemon bars bubbling or uneven on top?
This usually happens when too much air is incorporated into the filling. Mixing by hand and straining the eggs helps create a smoother, more even surface.
These lemon bars are simple in the best way—bright, balanced, and easy to make with ingredients you probably already have on hand. Once they’re chilled and sliced, they’re the kind of dessert that works just as well for a casual weeknight treat as they do for sharing with friends or bringing to a gathering.
Easy Classic Lemon Bars with Shortbread Crust
Ingredients
For the crust:
- 1 cup unsalted butter room temperature
- ½ cup granulated sugar
- 2 cups all-purpose flour
- ¼ tsp sea salt
For the filling:
- 4 large eggs room temperature
- 3 large egg yolks room temperature
- 3 cups granulated sugar
- ¾ cup all-purpose flour
- 1 cup lemon juice freshly squeezed
- 2 Tbsps grated lemon zest
- powdered sugar for dusting
Instructions
Make the crust:
- Preheat oven to 350℉. Lightly grease a 9x13-inch pan and line with parchment paper. Greasing the pan first helps the parchment to adhere to the pan when pressing crust dough into pan.
- Cream the butter and sugar in the bowl of a stand mixer with paddle attachment, about 3 minutes. Combine flour and salt, add to butter mixture and mix on low until a soft dough forms.1 cup unsalted butter, ½ cup granulated sugar, 2 cups all-purpose flour, ¼ tsp sea salt
- Distribute the dough evenly in the pan and press down into a flat layer. Bake 15-20 minutes until the edges turn golden and center looks set. Remove from oven and allow to cool while making the filling. Leave oven on.
Make the filling and finish the lemon bars:
- In a large bowl, whisk the eggs and egg yolks, then strain through a fine-mesh sieve to remove any bits of egg.4 large eggs, 3 large egg yolks
- Place sugar in a separate bowl and sift flour over sugar. Whisk together. Stir in the lemon juice until smooth. Add the lemon zest and egg mixture. Mix well with whisk or large spoon.3 cups granulated sugar, 1 cup lemon juice, ¾ cup all-purpose flour, 2 Tbsps grated lemon zest
- Slowly pour filling over crust and bake about 25 minutes until the center is just set with a slight jiggle.
- Let cool at room temperature for about 1 hour, then refrigerate for at least 2 hours before cutting.
- Dust with powdered sugar and cut into bars using a clean, sharp, damp knife. Clean and re-wet the knife after each cut.powdered sugar
Notes
- Strain the eggs for a smoother filling
This removes any bits of egg and helps prevent an uneven texture. - Use fresh lemon juice
Bottled juice won’t give the same bright flavor. - Don’t overbake
The center should still have a slight jiggle—it will finish setting as it cools. - Chill before cutting
This makes a big difference for clean, neat bars. - Wipe your knife between cuts
For the cleanest edges, wipe and re-wet your knife each time.
Tastes like family barbecue dinners in the Midwest! Just like my grandma used to make! Yummy!