Classic Lemon Bars with Buttery Shortbread Crust
Bright, buttery, and perfectly sweet with just the right touch of tart lemon, these classic lemon bars are a simple little treat that feels like sunshine on a plate. With a tender shortbread crust and silky lemon filling, they’re lovely for afternoon tea, sharing with friends, or simply enjoying with a cup of coffee on a quiet day.
RECIPES
Lemon Bars with a Buttery Shortbread Crust
There’s something wonderfully comforting about a homemade lemon bar. That buttery, tender shortbread crust paired with a bright, sweet-tart lemon filling is such a simple combination—but somehow, it always feels a little special.
These lemon bars are easy enough for a quiet afternoon of baking, but pretty enough to bring along to a gathering, family dinner, or afternoon tea. I especially love them chilled, when the lemon filling is wonderfully creamy and the flavors have had time to settle together.
And that little dusting of confectioners’ sugar? It’s the perfect finishing touch.
Ingredients
For the Shortbread Crust
1 cup (16 tablespoons / 226g) unsalted butter, melted
½ cup (100g) granulated sugar
2 teaspoons pure vanilla extract
½ teaspoon salt
2 cups + 2 tablespoons (265g) all-purpose flour, spooned and leveled
For the Lemon Filling
2 cups (400g) granulated sugar
6 tablespoons (46g) all-purpose flour
6 large eggs
1 cup (240ml) freshly squeezed lemon juice, about 4 lemons
2 teaspoons fresh lemon zest, optional
Confectioners’ sugar, for dusting
How to Make Lemon Bars
1. Prepare the pan
Preheat your oven to 325°F (163°C).
Line the bottom and sides of a 9 × 13-inch glass baking pan with parchment paper, leaving some parchment hanging over the sides. This overhang will make it much easier to lift the cooled lemon bars from the pan later.
Set the prepared pan aside.
2. Make the shortbread crust
In a medium bowl, combine the melted butter, granulated sugar, vanilla extract, and salt.
Add the flour and stir until everything is completely combined. The mixture will be quite thick.
Press the dough firmly and evenly into the bottom of your prepared pan. Try to make the crust as even as possible so the lemon filling sits nicely on top.
Bake for 20–22 minutes, or until the edges are just lightly browned.
Remove the crust from the oven. While it is still warm, use a fork to gently poke holes all over the surface. Don't poke all the way through the crust.
This is a little step that makes a big difference—it helps the lemon filling cling to the crust and keeps the layers together when you cut the bars.
Set the warm crust aside while you prepare the filling.
3. Make the lemon filling
In a large bowl, sift together the granulated sugar and flour.
Whisk in the eggs until well combined. Add the fresh lemon juice and lemon zest, if using, and whisk until the mixture is smooth and completely incorporated.
Freshly squeezed lemon juice really does make a difference here. Those bright, fresh citrus notes are what give these bars their lovely flavor.
4. Add the filling and bake
Pour the lemon filling over the warm shortbread crust.
Return the pan to the oven and bake for 22–26 minutes, or until the center is set and no longer noticeably jiggles.
If you're unsure, give the pan a very gentle tap while wearing an oven mitt. The center should look set rather than liquid.
Remove the lemon bars from the oven and allow them to cool completely at room temperature.
I usually let mine cool for about 2 hours, then transfer them to the refrigerator for another 1–2 hours until they're nicely chilled.
For the best texture and flavor, I recommend serving these lemon bars cold.
5. Cut and serve
Once the bars are completely cool, carefully lift them from the pan using the parchment-paper overhang.
Dust the top generously with confectioners’ sugar, then cut into squares.
For those nice, clean bakery-style edges, wipe your knife clean between each cut. It takes an extra minute, but it's worth it!
Serve chilled and enjoy.
A Few Helpful Tips
Use fresh lemons. Bottled lemon juice simply doesn't have the same bright, fresh flavor. Since the lemon is the star of this dessert, freshly squeezed juice is worth the little bit of extra effort.
Don't skip the chilling time. The filling continues to set as the bars cool, and chilling them makes them easier to cut and gives them that lovely creamy texture.
Add the zest. It's optional, but I personally love the extra burst of lemon flavor that fresh zest brings.
Keep your knife clean. If you want beautifully defined layers and neat squares, wipe the knife between cuts.
How to Store Lemon Bars
Cover leftover lemon bars and store them in the refrigerator for up to 1 week.
They're actually a wonderful make-ahead dessert because the flavor and texture hold up beautifully in the refrigerator.
Can You Freeze Lemon Bars?
Absolutely!
Lemon bars can be frozen for 3–4 months.
For the best results, wait until the bars have completely cooled, then cut them into squares without adding the confectioners’ sugar.
Place the individual bars on a baking sheet and freeze for about 1 hour.
Once they're firm, wrap each bar individually in aluminum foil or plastic wrap and place them in a large freezer bag or airtight freezer container.
When you're ready to enjoy them, thaw the bars in the refrigerator and dust them with confectioners’ sugar just before serving.
A Little Sweetness for the Day
There's something lovely about having a homemade dessert tucked away in the refrigerator, just waiting for a quiet cup of coffee or tea.
These lemon bars are sunshine in dessert form—bright, buttery, sweet, and just tart enough to keep you coming back for another little square.
Sometimes the simplest things really are the sweetest. 🍋💛
