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 mins
Cook Time47 minutes mins
Cooling Time1 hour hr
Total Time2 hours hrs 2 minutes mins
Course: Dessert, Snack
Cuisine: American
Servings: 16 bars
Calories: 144kcal
Cost: $6–$8
8x8-inch baking dish
Mixing bowls
Spatula
Zester
knife
- 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
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.
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.
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