There is truly nothing quite like the bright, tangy burst of a perfectly baked lemon square to brighten your day. This Lemon Squares Recipe is a classic, comforting treat that combines a buttery, tender crust with a zesty, creamy lemon filling, dusted lightly with powdered sugar for that extra touch of sweetness. Whether you’re serving it at a family gathering or enjoying a moment of sunshine on your own, these lemon squares bring a delightful balance of tart and sweet that simply melts in your mouth and keeps you coming back for more.

Ingredients You’ll Need
Gathering the right ingredients is key to nailing this Lemon Squares Recipe. Each component plays a crucial role—from the rich butter that creates a tender crust, to the fresh lemon juice and zest that deliver that vibrant citrus punch.
- Unsalted butter (1 cup, softened): Provides a rich, flaky base that holds all the goodness together perfectly.
- Granulated sugar (1/2 cup + 1 1/2 cups): Sweetens both the buttery crust and the zesty lemon filling just right.
- All-purpose flour (2 1/4 cups total): Offers structure to the crust and filling, creating that signature firm but tender texture.
- Salt (1/4 teaspoon): Enhances the overall flavor by balancing the sweet and tart elements.
- Large eggs (4): Help firm up the lemon custard filling for a luscious, smooth finish.
- Fresh lemon juice (2/3 cup): The heart of the recipe—this adds that unforgettable zing we all adore.
- Lemon zest (1 tablespoon): Intensifies the citrus aroma and flavor, making each bite wonderfully fresh.
- Powdered sugar (for dusting): Adds a delicate sweetness and a beautiful final touch to your squares.
How to Make Lemon Squares Recipe
Step 1: Prepare the Crust
Start by preheating your oven to 350°F (175°C) and lining a 9×13-inch pan with parchment paper, leaving some overhang to help with lifting out the finished product. In a medium bowl, cream together the softened butter and 1/2 cup sugar until light and fluffy—this ensures a tender, melt-in-your-mouth crust. Mix in 2 cups of flour and the salt until a soft dough comes together. Press this dough evenly into the bottom of your pan and bake for 18 to 20 minutes until the edges turn a lovely golden color, creating the perfect foundation for your lemon filling.
Step 2: Whisk the Lemon Filling
While the crust is baking, whisk together 4 large eggs, 1 1/2 cups sugar, 1/4 cup flour, fresh lemon juice, and lemon zest in a large bowl. Make sure everything is smooth and combined well—this mixture will transform into the luscious lemon custard that makes this Lemon Squares Recipe so irresistible.
Step 3: Bake the Filling
Once your crust comes out of the oven, pour your lemon filling evenly over the hot crust. Return the pan to the oven and bake for another 20 to 25 minutes, or until the filling sets completely and you no longer see jiggles in the center. This step ensures the perfect balance of firmness and creaminess you want in your lemon squares.
Step 4: Cool and Chill
Allow your lemon squares to cool completely in the pan, then refrigerate for at least an hour. Chilling helps the squares set firmly and makes slicing much easier. When ready, use the parchment overhang to lift the entire slab out of the pan and cut into 16 delightful squares. Don’t forget to dust the top lightly with powdered sugar to add a pretty finish and subtle sweetness!
How to Serve Lemon Squares Recipe

Garnishes
A simple dusting of powdered sugar is classic and lovely, but feel free to get creative by adding fresh lemon slices or edible flowers for an elegant look. A sprig of fresh mint also adds a nice pop of color and a refreshing aroma that complements the tart filling beautifully.
Side Dishes
Lemon squares are the perfect ending to any meal, especially alongside a cup of hot tea or freshly brewed coffee. For a brunch setting, pair them with fresh berries or a light fruit salad to highlight the citrus notes without overpowering your palate.
Creative Ways to Present
Serve your lemon squares on a decorative platter lined with lemon leaves or parchment paper for a rustic charm. You can also stack them in a tiered dessert tray to impress guests at your next party or package them in pretty boxes as delightful homemade gifts that showcase this beloved Lemon Squares Recipe.
Make Ahead and Storage
Storing Leftovers
Leftover lemon squares should be stored in an airtight container in the refrigerator to maintain freshness and texture. They will keep well for up to 3-4 days, making them an easy, make-ahead treat for busy days.
Freezing
If you want to enjoy these lemony delights later, you can freeze the squares wrapped tightly in plastic wrap and foil. Freeze for up to 2 months, then thaw in the fridge overnight before serving to preserve their fresh-baked taste and texture.
Reheating
Since lemon squares are best enjoyed chilled, there’s no need to reheat. However, if you prefer them slightly warmed, pop a single square in the microwave for about 10-15 seconds, but don’t overdo it, or the texture may become too soft.
FAQs
Can I use bottled lemon juice instead of fresh lemons?
While fresh lemon juice is recommended for the brightest flavor and natural zest, bottled lemon juice can be a convenient substitute in a pinch. Just make sure it’s 100% lemon juice with no added preservatives or sweeteners to keep that authentic tang.
What if I want a more tart lemon square?
For a bolder lemon flavor, increase the lemon juice to 3/4 cup as noted in the recipe tips. This will ramp up the tartness without overpowering the sweetness, giving you a delightful pucker in every bite.
How do I cut perfect lemon squares without them crumbling?
Chill the lemon squares thoroughly in the fridge for at least an hour before slicing. Using a sharp knife wiped clean between cuts helps maintain neat edges and prevents sticking or crumbling.
Can I make this recipe gluten-free?
Yes! Substitute the all-purpose flour in both the crust and filling with a gluten-free flour blend that measures cup-for-cup for regular flour. Just be mindful that the texture might be slightly different but still delicious.
Is this Lemon Squares Recipe suitable for vegetarians?
Absolutely. This recipe contains no meat products and relies on simple ingredients like butter, eggs, and lemons, making it a perfect vegetarian-friendly dessert option.
Final Thoughts
This Lemon Squares Recipe is one of those timeless desserts that deliver so much joy with each bite. Its effortless combination of buttery crust and luscious lemon filling is a guaranteed crowd-pleaser and a wonderful way to celebrate the seasons or simply add a splash of sunshine to your day. I encourage you to try it out soon and enjoy every zesty, sweet moment!
Print
Lemon Squares Recipe
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour 15 minutes
- Yield: 16 squares
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
These zesty Lemon Squares feature a buttery, tender crust topped with a smooth, tangy lemon filling. Perfectly balanced between sweet and tart, they make a refreshing and easy dessert ideal for summer gatherings or anytime you crave a citrusy treat.
Ingredients
For the crust:
- 1 cup unsalted butter, softened
- 1/2 cup granulated sugar
- 2 cups all-purpose flour
- 1/4 teaspoon salt
For the lemon filling:
- 4 large eggs
- 1 1/2 cups granulated sugar
- 1/4 cup all-purpose flour
- 2/3 cup freshly squeezed lemon juice (about 3–4 lemons)
- 1 tablespoon lemon zest
For serving:
- Powdered sugar, for dusting
Instructions
- Preheat and prepare pan: Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal later.
- Make the crust dough: In a medium bowl, cream together the softened butter and 1/2 cup granulated sugar until the mixture is light and fluffy. Add 2 cups of all-purpose flour and 1/4 teaspoon salt, mixing until a soft dough forms.
- Bake the crust: Press the dough evenly into the bottom of the prepared pan. Bake for 18–20 minutes or until the edges turn lightly golden.
- Prepare lemon filling: While the crust bakes, whisk together the eggs, 1 1/2 cups sugar, 1/4 cup flour, freshly squeezed lemon juice, and lemon zest in a large bowl until the mixture is smooth and well combined.
- Add the filling to crust: Pour the lemon filling over the hot crust once it comes out of the oven.
- Bake the filled squares: Return the pan to the oven and bake for 20–25 minutes or until the filling is set and no longer jiggles in the center.
- Cool and chill: Let the lemon squares cool completely in the pan, then refrigerate for at least 1 hour to firm up.
- Slice and serve: Use the parchment paper overhang to lift the squares out of the pan. Slice into 16 squares and lightly dust with powdered sugar before serving.
Notes
- For a more tart flavor, increase the lemon juice to 3/4 cup.
- To make slicing easier, chill the bars thoroughly and clean the knife between cuts.

