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overhead view of homemade lemon bars on kitchen counter
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5 from 1 vote

Classic Lemon Bars

A buttery, tender shortbread crust topped with bright, tangy lemon custard. Reliable, simple, and impossible not to love. Perfect for a weekday treat, a casual gathering, or when life hands you a bowl of lemons.
Prep Time15 minutes
Cook Time47 minutes
Cooling Time1 hour
Total Time2 hours 2 minutes
Course: Dessert, Snack
Cuisine: American
Servings: 16 bars
Calories: 144kcal
Cost: $6–$8

Equipment

  • 8x8-inch baking dish
  • Mixing bowls
  • Spatula
  • Zester
  • knife

Ingredients

  • 1 cup all-purpose flour
  • 1/2 cup unsalted butter room temperature
  • 1/4 cup confectioners’ sugar
  • 1/4 teaspoon vanilla extract
  • 1/4 teaspoon salt
  • 2 large eggs
  • 1 large egg yolk
  • 1 cup white sugar
  • 2 tablespoons all-purpose flour
  • 1/4 cup freshly squeezed lemon juice
  • 1 tablespoon freshly grated lemon zest
  • 1 teaspoon confectioners’ sugar

Instructions

  • Preheat oven to 350°F. Lightly oil an 8x8-inch baking dish.
  • Mix flour and butter until crumbly. Stir in confectioners’ sugar, vanilla, and salt. Press evenly into the pan using slightly damp fingers to prevent sticking.
  • Bake 22 minutes, until edges are lightly golden. Remove from oven.
  • Whisk eggs and yolk, then add sugar and 2 tablespoons flour until smooth. Stir in lemon juice and zest. Pour over warm crust.
  • Return pan to oven and bake 25 minutes, until center is set and top has a delicate, crackly finish.
  • Let bars cool fully before slicing. Rushing this will cause them to fall apart.
  • Dip knife in hot water before cutting for clean edges. Dust with confectioners’ sugar and cut into 16 squares.

Notes

Storage: Keep in an airtight container in the fridge for up to 5 days. Bars freeze well for up to 2 months; thaw in the fridge before serving.
Flavor tweak: Adjust sugar and lemon juice to taste if you prefer sweeter or more tangy bars.
Make it fancy: Top with a few fresh berries or a thin swirl of raspberry puree before baking.
Tip: Rolling firm lemons on the counter or microwaving 10–15 seconds before juicing helps get the most juice with the least effort.

Nutrition

Calories: 144kcal | Carbohydrates: 22g | Protein: 2g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 48mg | Sodium: 91mg | Potassium: 25mg | Fiber: 0.3g | Sugar: 13g | Vitamin A: 224IU | Vitamin C: 2mg | Calcium: 8mg | Iron: 1mg
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