Bright Citrus Lemon Bars Recipe — Tangy Homemade Dessert

You will love these classic Lemon Bars: a sweet, tangy lemon filling on a buttery crust—perfect for dessert or any special occasion!

When life hands you lemons—or when a thoughtful friend mails you a box of Meyer lemons—make lemon bars. I’ve made this recipe many times over the years, and it’s always a crowd-pleaser.

These lemon bars are bright, tart, and satisfyingly sweet. Read on for an easy, reliable method to make them at home.

Scroll down for the printable recipe card at the bottom of the page

A Gift of Lemons

A friend surprised me with a box of six perfect Meyer lemons picked from her tree in Southern California. They were so pristine our son thought they were plastic. I used several of those lemons to make this recipe—each bar benefits from the fresh citrus flavor.

Overview: Why These Lemon Bars Work

This recipe uses the whole lemon (minus seeds) for maximum flavor. The buttery crust provides a tender base while the lemon filling is smooth and full-flavored. The bars are baked, chilled, then dusted with powdered sugar just before serving.

Preparing the Crust

Preheat the oven to 350°F. Place the crust ingredients into a food processor and pulse until the mixture forms a crumbly dough. Transfer the crumbs to an 8×8-inch pan lined with aluminum foil, leaving an overhang to lift the bars out later.

Press the dough firmly and evenly into the bottom of the prepared pan to form a compact crust. Bake at 350°F for 20 minutes, then transfer the pan to a wire rack. After removing the crust, reduce oven temperature to 300°F for baking the filling.

Making the Lemon Filling

While the crust bakes, prepare the filling. Remove seeds and place the whole lemon (peel included) and the granulated sugar in a food processor. Process on high until the lemon and sugar are thoroughly pulverized—this extracts concentrated lemon flavor from the peel as well as the flesh.

Check carefully for any seeds and remove them if necessary.

Add the lemon juice, eggs, cooled melted butter, and cornstarch to the processed lemon-sugar mixture. Pulse until smooth and well blended. Pour the filling over the hot baked crust, smoothing it gently to an even layer.

Baking and Cooling

Bake at 300°F for 25–30 minutes, or until the center is set and no longer jiggly (mine took about 28 minutes). Remove the pan to a wire rack and let the bars cool to room temperature.

After they reach room temperature, chill the bars in the refrigerator for 3–4 hours (longer is fine). The chill firms the filling and makes clean slicing easier.

Slicing and Serving

Use the foil overhang to lift the chilled block of bars from the pan. Peel back the foil and cut into sixteen 2-inch squares. Just before serving, lightly sift powdered sugar over the top for a classic finish.

Store any leftovers in a covered container in the refrigerator.

Recipe Summary

Yield: 16 bars

Prep time: 30 minutes | Cook time: 25–30 minutes | Total time: about 55 minutes (plus chilling)

Ingredients — For the crust

• 1 cup all-purpose flour
• 1/4 cup granulated sugar
• 1/2 cup butter, melted
• 1 teaspoon vanilla extract

Ingredients — For the filling

• 1 Meyer lemon, seeds removed (or 1 regular lemon)
• 1 cup granulated sugar
• 3 tablespoons lemon juice (fresh or bottled)
• 3 large eggs
• 1 1/2 tablespoons cornstarch
• 3 tablespoons butter, melted and cooled

Instructions

1. Preheat oven to 350°F. Line an 8×8-inch pan with aluminum foil, leaving an overhang for easy removal.
2. Combine crust ingredients in a food processor and pulse until crumbly. Press the mixture firmly into the prepared pan to form the crust.
3. Bake crust at 350°F for 20 minutes. Remove to a wire rack and lower oven temperature to 300°F.
4. While crust bakes, place the seeded lemon and 1 cup sugar in the food processor. Process until the lemon is completely pulverized. Remove any stray seeds.
5. Add lemon juice, eggs, cornstarch, and cooled melted butter to the lemon-sugar mixture. Pulse until smooth.
6. Pour the filling over the hot crust and bake at 300°F for 25–30 minutes, until the center is set.
7. Cool to room temperature, then refrigerate for 3–4 hours until firm.
8. Lift the bars from the pan using the foil overhang, cut into sixteen 2-inch squares, sift powdered sugar over the tops, and serve. Store leftovers refrigerated.

Enjoy these bright, buttery lemon bars—once you try them, they’ll quickly become a favorite to make again and again.

Printable Recipe Card

Thank you for reading—hope you try these delightful lemon bars and enjoy them as much as we do!