Lemon Bars Cut Triangles

Featured in: Warm Bake & Roast Recipes

These bright, tangy lemon bars feature a buttery shortbread crust topped with a luscious lemon filling. Baked together, the crust becomes lightly golden while the filling sets perfectly, producing a refreshing balance of sweet and tart. Once cooled, the bars are dusted with powdered sugar and cut into elegant triangles, making them an easy-to-serve, crowd-pleasing treat. Ideal for a quick yet impressive dessert.

Updated on Fri, 12 Dec 2025 12:30:00 GMT
Perfectly golden and tangy lemon bars, cut into neat triangles, ready to serve and enjoy. Save
Perfectly golden and tangy lemon bars, cut into neat triangles, ready to serve and enjoy. | birchwhisk.com

Bright, tangy lemon bars with a buttery shortbread crust, cut into elegant triangles for an easy, crowd-pleasing dessert.

These lemon bars quickly became a family favorite at our holiday gatherings thanks to their perfect balance of sweet and tart.

Ingredients

  • For the Shortbread Crust: 1 cup (125 g) all-purpose flour 1/4 cup (30 g) powdered sugar 1/4 teaspoon salt 1/2 cup (115 g) unsalted butter, cold and cubed
  • For the Lemon Filling: 1 cup (200 g) granulated sugar 2 large eggs 2 tablespoons (15 g) all-purpose flour 1/4 teaspoon baking powder 1/4 teaspoon salt 1/3 cup (80 ml) freshly squeezed lemon juice (about 2 lemons) 1 tablespoon finely grated lemon zest (about 1 lemon)
  • For Finishing: Powdered sugar, for dusting

Instructions

Preheat Oven:
Preheat the oven to 350°F (175°C). Line an 8-inch (20 cm) square baking pan with parchment paper, leaving an overhang for easy removal.
Prepare Crust:
In a medium bowl, combine flour, powdered sugar, and salt for the crust. Add the cold, cubed butter and cut it in with a pastry cutter or your fingers until the mixture resembles coarse crumbs.
Bake Crust:
Press the mixture firmly and evenly into the bottom of the prepared pan. Bake for 15 18 minutes, until lightly golden.
Mix Filling:
Meanwhile, whisk together granulated sugar and eggs in a medium bowl until smooth. Add flour, baking powder, salt, lemon juice, and lemon zest. Whisk until well combined.
Bake Filling:
Pour the lemon filling over the hot crust as soon as it comes out of the oven. Return the pan to the oven and bake for an additional 18 20 minutes, or until the filling is set and just barely jiggles in the center.
Cool:
Remove from the oven and let cool completely in the pan on a wire rack.
Serve:
Use the parchment overhang to lift out the bars. Dust with powdered sugar and cut into 8 squares, then cut each square diagonally to make 16 triangles.
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These lemon bars have been a beloved treat during our family reunions, always bringing smiles and requests for seconds.

Pairing Suggestions

Enjoy these lemon bars with a cup of Earl Grey tea or a refreshing glass of Moscato for a delightful treat.

Variations

Swap the lemon juice for lime to give the bars a tangy twist perfect for summer gatherings.

Storage Tips

Store cooled lemon bars in an airtight container in the refrigerator for up to 3 days to maintain freshness.

Elegant triangular slices of homemade lemon bars dusted with powdered sugar, offering a sunny dessert experience. Pin it
Elegant triangular slices of homemade lemon bars dusted with powdered sugar, offering a sunny dessert experience. | birchwhisk.com

With its bright flavor and buttery crust, this lemon bar recipe is sure to become a staple in your dessert collection.

Frequently Asked Questions

What is the best way to get clean cuts on lemon bars?

Chilling the bars thoroughly before slicing helps achieve clean, precise cuts, especially when using a sharp knife.

Can I substitute lime juice for lemon juice?

Yes, swapping lime juice introduces a tangy twist that adds a fresh, citrusy flavor without compromising texture.

How do I ensure the shortbread crust is flaky?

Using cold, cubed butter and cutting it into the dry ingredients until crumbly helps create a flaky shortbread crust.

What type of pan is recommended for baking?

An 8-inch square baking pan lined with parchment paper allows easy removal and even baking of the bars.

How can I enhance the lemon flavor?

Adding a splash of pure lemon extract to the filling can boost the citrus brightness without altering texture.

Lemon Bars Cut Triangles

Tangy lemon bars with buttery shortbread crust, cut into elegant triangles for easy sharing.

Prep Time
20 Minutes
Cook Time
35 Minutes
Total Time
55 Minutes


Difficulty: Easy

Cuisine: American

Yield: 16 servings

Dietary: Vegetarian

Ingredients

Shortbread Crust

01 1 cup all-purpose flour
02 1/4 cup powdered sugar
03 1/4 teaspoon salt
04 1/2 cup unsalted butter, cold and cubed

Lemon Filling

01 1 cup granulated sugar
02 2 large eggs
03 2 tablespoons all-purpose flour
04 1/4 teaspoon baking powder
05 1/4 teaspoon salt
06 1/3 cup freshly squeezed lemon juice (about 2 lemons)
07 1 tablespoon finely grated lemon zest (about 1 lemon)

Finishing

01 Powdered sugar for dusting

Instructions

Step 01

Preheat oven and prepare pan: Preheat oven to 350°F. Line an 8-inch square baking pan with parchment paper, leaving an overhang for easy removal.

Step 02

Combine crust ingredients: In a medium bowl, mix flour, powdered sugar, and salt. Add cold, cubed butter and cut in with a pastry cutter or fingers until mixture resembles coarse crumbs.

Step 03

Bake crust: Press mixture firmly and evenly into bottom of prepared pan. Bake 15 to 18 minutes until lightly golden.

Step 04

Prepare lemon filling: Whisk granulated sugar and eggs until smooth. Add flour, baking powder, salt, lemon juice, and lemon zest; whisk to combine.

Step 05

Add filling and bake: Pour lemon filling over hot crust immediately after removing from oven. Return pan to oven and bake 18 to 20 minutes until filling is set and slightly jiggly in center.

Step 06

Cool bars: Remove from oven and cool completely in pan on wire rack.

Step 07

Slice and serve: Lift bars from pan using parchment overhang. Dust with powdered sugar. Cut into 8 squares, then slice each square diagonally to yield 16 triangles.

Tools You'll Need

  • 8-inch square baking pan
  • Mixing bowls
  • Whisk
  • Pastry cutter or fork
  • Parchment paper
  • Sharp knife

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains wheat (gluten), eggs, and dairy (butter). Verify ingredient labels for allergens.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 135
  • Total Fat: 6 g
  • Total Carbohydrate: 19 g
  • Protein: 1 g