Lemon Bars

Name: Lemon Bars
Prep time: 10 min
Cook time: 25 min
Total time: 1 h 25 min
Cuisine: American
Ingredients: 1/2 cup unsalted butter, softened; 3/4 cup all-purpose flour; 2 large eggs, room temperature; 2 tablespoons lemon zest, finely grated; 2 tablespoons fresh lemon juice; 3/4 cup granulated sugar; 1/4 teaspoon sea salt; 4 tablespoons fresh lemon juice (for glaze); 8 teaspoons lemon zest (for glaze), finely grated; 1 cup icing sugar, sifted

A bright, zesty tray of Lemon Bars is a simple way to bring sunshine to any table. These bars are tender and buttery with a soft, custard-like lemon layer and a thin, golden crust. The lemon flavor is lively but balanced, offering a pleasant tartness softened by the sweetness of the glaze. Aroma is fresh and citrusy, with the lemon zest releasing fragrant oils as you bake. Texturally, you get a slightly crumbly base that gives way to a smooth, slightly springy filling, finished by a glossy lemon glaze that sets to a delicate sheen.

This recipe is ideal for casual afternoon tea, spring picnics, potlucks, and anytime you want a bright dessert that feels both classic and homemade. They are straightforward to make and impressive to serve, perfect for bakers who want big flavor with minimal fuss.

Ingredients

1/2 cup unsalted butter, softened. Use room temperature butter so it creams easily into the crust for a tender base.
3/4 cup all-purpose flour. Provides structure for the crust and filling; measure by spooning into the cup and leveling.
2 large eggs, room temperature. Eggs give the lemon layer its custardy texture and help it set.
2 tablespoons lemon zest (from about 2 lemons), finely grated. Fresh zest adds concentrated lemon oil and aroma.
2 tablespoons fresh lemon juice. Fresh juice gives bright acidity and authentic lemon flavor.
3/4 cup granulated sugar. Sweetens the filling and balances the tart lemon.
1/4 teaspoon sea salt. Enhances overall flavor and balances sweetness.
4 tablespoons fresh lemon juice (for glaze). Adds tang to the glaze for a glossy finish.
8 teaspoons lemon zest (for glaze), finely grated. Extra zest in the glaze intensifies the citrus aroma and texture.
1 cup icing sugar (powdered sugar), sifted. Creates a smooth, silky glaze that sets nicely on the cooled bars.

Step-by-Step Instructions

Preheat your oven to 350°F (175°C). Grease an 8×8-inch baking dish with butter and set it aside. This prevents sticking and gives the bars clean edges.
In a stand mixer or using a hand mixer, beat softened butter, granulated sugar, all-purpose flour, and sea salt until just combined and slightly crumbly. Work quickly so the mixture stays tender.
In a separate bowl, whisk together the eggs, 2 tablespoons of lemon zest, and 2 tablespoons of fresh lemon juice until smooth. Whisk until the yolks and whites are fully combined.
Gradually add the egg-lemon mixture to the flour mixture and beat on low for about 2 minutes until smooth. Scrape the bowl as needed to ensure an even batter.
Pour the batter into the prepared baking dish and smooth the top with a spatula so it bakes evenly.
Bake for 23 to 25 minutes, or until the edges are golden brown. A toothpick inserted near the center should come out mostly clean with a few moist crumbs.
Allow the bars to cool completely in the pan. Cooling fully helps the filling set so it slices neatly.
For the glaze, whisk together sifted icing sugar, 4 tablespoons of fresh lemon juice, and 8 teaspoons of lemon zest until smooth. If the glaze is too thin, add a touch more sifted icing sugar; if too thick, add a few drops of lemon juice.
Once cool, spread the glaze over the bars and let it set for 20 minutes before slicing into squares. A thin, even coat gives a glossy finish and bright flavor.
Slice into squares and serve. Use a sharp knife wiped between cuts for neat slices.

Recipe Details

Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 1 hour 25 minutes (includes cooling and glaze setting)
Servings: about 9 squares
Calories: approximately 260 kcal per serving

Tips, Storage & Variations

Tips:
- Use fresh lemons for both juice and zest for the best flavor and aroma.
- Soften butter to room temperature but do not melt it; melted butter changes the crust texture.
- Let the bars cool fully before glazing to avoid the glaze sliding off.
Storage:
- Store cooled, glazed bars in an airtight container at room temperature for up to 2 days.
- For longer storage, refrigerate for up to 5 days. Bring to room temperature before serving for the best texture.
Freezing:
- Freeze unglazed bars wrapped tightly in plastic wrap and aluminum foil for up to 2 months.
- Thaw in the refrigerator, then bring to room temperature and add the glaze before serving.
Flavor variations using ingredients on hand:
- Extra zest boost: Stir an additional teaspoon of the provided lemon zest into the batter for intensified citrus aroma.
- Brighter glaze: Increase the 4 tablespoons of lemon juice in the glaze by a teaspoon or two from the provided amount for tangier topping, balancing with a bit more sifted icing sugar from the provided ingredient if needed.
- Lighter finish: Skip glazing and dust the top with a thin layer of sifted icing sugar from the provided powdered sugar for a subtler sweet finish.

Frequently Asked Questions

Q: Can I use bottled lemon juice instead of fresh?
A: Fresh lemon juice gives the best bright flavor, but bottled juice will work in a pinch.

Q: Why did my filling not set?
A: Underbaking or using cold eggs can prevent setting. Ensure you bake the full 23 to 25 minutes and use room temperature eggs.

Q: How do I get clean slices?
A: Chill bars slightly, use a sharp knife, and wipe it clean between cuts for neat squares.

Q: Can I make these ahead of time?
A: Yes, you can bake and chill them, then glaze just before serving or glaze and refrigerate up to 5 days.

Q: Can I reduce the sugar?
A: You can reduce the granulated sugar slightly, but sweetness balances the lemon. Adjust with caution.

Conclusion

I hope these Lemon Bars bring a bright, cheerful finish to your next gathering. For a variation with a shortbread style base, see the guide at Sally’s Baking Addiction lemon bars with shortbread crust. For another trusted take on classic lemon bars, check out the method at Preppy Kitchen lemon bars. If you make them, please share how they turned out and any little tweaks you loved. Enjoy a warm, cozy bite and savor the lemony goodness.

Lemon Bars

Print Recipe

A bright, zesty tray of Lemon Bars, tender and buttery with a custard-like lemon layer and a thin, golden crust.

Author: hannah-reed
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 85 minutes
Yield: 9 servings 1x
Category: Dessert
Method: Baking
Cuisine: American
Diet: Vegetarian

Ingredients

Scale

1/2 cup unsalted butter, softened
3/4 cup all-purpose flour
2 large eggs, room temperature
2 tablespoons lemon zest, finely grated
2 tablespoons fresh lemon juice
3/4 cup granulated sugar
1/4 teaspoon sea salt
4 tablespoons fresh lemon juice (for glaze)
8 teaspoons lemon zest (for glaze), finely grated
1 cup icing sugar, sifted

Instructions

Preheat your oven to 350°F (175°C). Grease an 8×8-inch baking dish with butter and set aside.
Beat softened butter, granulated sugar, flour, and sea salt until just combined and slightly crumbly.
Whisk together the eggs, 2 tablespoons lemon zest, and 2 tablespoons lemon juice until smooth.
Gradually add the egg-lemon mixture to the flour mixture and beat on low for about 2 minutes until smooth.
Pour the batter into the prepared baking dish and smooth the top with a spatula.
Bake for 23 to 25 minutes, or until edges are golden brown.
Allow to cool completely in the pan.
Whisk together icing sugar, 4 tablespoons lemon juice, and 8 teaspoons lemon zest for the glaze.
Spread the glaze over the cooled bars and let it set for 20 minutes before slicing.
Slice into squares and serve.