How to Make the Perfect Lemon Bars
American · Medium · 60 min · 16 servings
These iconic lemon bars feature a crisp and buttery shortbread base topped with a thick layer of glossy and perfectly tangy lemon curd filling. They are a timeless bake sale and potluck favorite that is impossible to eat just one of.
Why this recipe works
This Lemon Bars recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 60 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 220 calories with 3g of protein, making it a balanced choice for any meal.
What you will need
This recipe uses 6 simple ingredients that you can find at any grocery store:
- 1.5 cups all-purpose flour divided
- 0.5 cup unsalted butter softened
- 1.5 cups granulated sugar
- 4 whole large eggs
- 4 whole lemons juiced and zested
- 0.25 cup powdered sugar for dusting
Step by step instructions
Step 1: Make and Bake the Shortbread Crust
Mix softened butter with a quarter cup of sugar and one cup of flour until a crumbly dough forms. Press evenly into a greased 9x13 inch baking pan. Bake at 350 degrees for 15 to 18 minutes until lightly golden at the edges.
Step 2: Prepare the Lemon Filling
Whisk together eggs, remaining sugar, remaining flour, lemon juice, and lemon zest in a bowl until very smooth. The small amount of flour helps the filling set into a firm but creamy layer rather than a loose curd.
Step 3: Bake the Lemon Layer
Pour the lemon filling over the still-hot shortbread crust immediately and return to the oven. Bake at 350 degrees for 22 to 25 minutes until the filling is set and no longer jiggles when the pan is gently shaken.
Step 4: Cool and Serve
Allow the lemon bars to cool completely at room temperature then refrigerate for at least one hour before cutting. Dust generously with powdered sugar right before serving for the classic presentation.
Easy substitutions
Missing an ingredient? Here are some swaps that work perfectly:
- all-purpose flour → gluten-free 1-to-1 baking flour for a gluten-free version
- granulated sugar → coconut sugar for a subtle caramel undertone
Common mistakes to avoid
Watch out for these pitfalls that can affect your results:
- Cutting the bars before they are fully chilled which causes the filling to smear and fall apart
- Dusting with powdered sugar too early while the bars are still warm causing it to dissolve completely
Nutrition facts
Per serving: 220 calories, 3g protein, 32g carbs, 10g fat, 0g fiber.
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