Classic Lemon Bars with Shortbread Crust

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Introduction

These Classic Lemon Bars feature a buttery, crumbly shortbread crust topped with a smooth, bright lemon filling. The contrast between the rich crust and the sweet-tart citrus layer makes them a refreshing dessert for afternoon tea, family gatherings, bake sales, and celebrations.

Origin

Lemon bars are strongly associated with American home baking. Their exact origin is difficult to pinpoint, but the combination of shortbread-style crust and lemon custard became especially popular in American cookbooks during the 20th century.

Cultural Significance

Lemon bars have become a familiar part of American dessert tables and potlucks. Their simple preparation, attractive appearance, and balance of sweetness and acidity make them a popular homemade treat.

Ingredients Quantity

Makes approximately 16 bars

Shortbread Crust

  • 1½ cups (190 g) all-purpose flour
  • ½ cup (60 g) powdered sugar
  • ½ cup (113 g) unsalted butter, softened
  • ¼ teaspoon salt
  • 1 teaspoon vanilla extract

Lemon Filling

  • 4 large eggs
  • 1½ cups (300 g) granulated sugar
  • ⅔ cup (160 ml) fresh lemon juice
  • 2 tablespoons finely grated lemon zest
  • ¼ cup (30 g) all-purpose flour
  • ¼ teaspoon salt

For Finishing

  • 2–3 tablespoons powdered sugar

Optional Additions

  • Extra lemon zest
  • A thin lemon glaze
  • Fresh berries for serving
  • A small amount of vanilla extract in the filling
  • Orange zest mixed with the lemon zest
  • Whipped cream

Tips for Success

  • Use freshly squeezed lemon juice for the best flavor.
  • Avoid grating too deeply into the white part of the lemon peel, which can taste bitter.
  • Line the baking pan with parchment paper so the bars are easy to remove.
  • Bake the crust until lightly golden before adding the filling.
  • Pour the lemon mixture over the warm crust for the best results.
  • Don’t overbake; the center should be set but still slightly soft.
  • Cool completely before cutting for clean, neat squares.
  • Chill the bars before slicing if you want especially sharp edges.

Instructions

Prepare the Crust

  1. Preheat the oven to 350°F (175°C).
  2. Line an 8 × 8-inch (20 × 20 cm) square baking pan with parchment paper.
  3. Combine the flour, powdered sugar, and salt in a bowl.
  4. Add the softened butter and vanilla.
  5. Mix until a soft, crumbly dough forms.
  6. Press the mixture firmly and evenly into the bottom of the prepared pan.
  7. Bake for 18–22 minutes, or until the edges are lightly golden.

Prepare the Lemon Filling

  1. While the crust is baking, whisk the eggs and granulated sugar until smooth.
  2. Add the lemon juice and lemon zest.
  3. Whisk in the flour and salt until completely combined.
  4. Pour the lemon mixture over the warm baked crust.
  5. Return the pan to the oven and bake for another 20–25 minutes, until the filling is set and no longer jiggles significantly in the center.
  6. Remove from the oven and allow to cool completely.
  7. Refrigerate for at least 1 hour for easier slicing.
  8. Dust generously with powdered sugar.
  9. Cut into 16 squares and serve.

Description

Each bar has a tender, buttery shortbread base covered with a silky lemon layer. The filling delivers a bright citrus flavor balanced by the sweetness of the sugar, while the powdered sugar creates the classic finishing touch.

Nutritional Information

Approximate per bar, assuming 16 servings:

  • Calories: 210–230
  • Protein: 3 g
  • Carbohydrates: 31–34 g
  • Fat: 9–10 g
  • Saturated Fat: 5–6 g
  • Sugar: 22–25 g
  • Fiber: 0–1 g
  • Sodium: 70–100 mg

Values are estimates and vary according to the exact ingredients and portion size.

Conclusion

Classic Lemon Bars are an easy and elegant dessert that combines a rich buttery crust with a refreshing citrus filling. They can be prepared ahead of time and are especially enjoyable when served chilled.

Recommendation

For the best presentation, refrigerate the bars thoroughly before cutting them into neat squares. Finish with powdered sugar just before serving and pair them with tea, coffee, or fresh berries.

Embracing Healthful Indulgence

Lemon bars are an indulgent dessert, but their bright lemon flavor provides plenty of character without requiring heavy toppings. Enjoying a moderate portion alongside fresh fruit and a balanced meal is a simple way to appreciate this classic treat.

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