Lemon Bars Recipe Easy and Delicious: Zesty Shortbread With Dusting Powder

I’ve burned my share of lemon bars, but this version is foolproof with a buttery shortbread crust and tangy filling.

No fancy techniques—just mix, bake, and dust with powdered sugar for a bright, zesty treat every time.

Ingredients for Lemon Bars Recipe Easy and Delicious

Simple ingredients for bright, buttery, zesty squares everyone will love.

Butter is key here—Plugrá or Land O’Lakes are solid choices at most grocery stores. The lemons? Grab Meyer lemons if you can find them (sweeter, less acidic). Regular grocery store lemons work fine too, just roll them on the counter before juicing to get every last drop. The flour is basic all-purpose—no need for anything fancy. I always grab King Arthur when it’s on sale, but store brand is totally fine.

No fresh lemons? Bottled juice at half the amount (it’s more concentrated), but skip the zest. Eggs can be swapped for flax eggs if needed. Short on powdered sugar? Blend granulated sugar in a blender until fine. The crust works with gluten-free flour blends (1:1 ratio), but the texture will be slightly different. Always taste your lemons before measuring—some are juicier than others.

These keep beautifully at room temperature for 3-4 days in an airtight container. Pop them in the fridge for up to 1 week, but let them come to room temp before serving. Dust with powdered sugar right before serving (it dissolves if added too early).

Step-by-Step Instructions for Zesty Shortbread With Dusting Powder

These steps make it simple to achieve that perfect tangy filling and buttery crust.

Step 1: Make the Shortbread Crust

Preheat your oven to 350°F. In a food processor, pulse 1.5 cups all-purpose flour, 0.5 cup granulated sugar, 0.25 tsp salt, and 0.25 tsp baking powder until combined. Add 1 cup cold, cubed unsalted butter and pulse until the mixture resembles coarse crumbs.

Press the dough evenly into a greased 9×13-inch baking pan. I use the bottom of a glass to create a smooth, even layer. Bake for 18-20 minutes until the edges are just beginning to turn light golden brown. Watch closely—overbaking will make the crust too dry.

Step 2: Prepare the Lemon Filling

While the crust bakes, whisk together 4 whole large eggs, 2 cups powdered sugar, 0.75 cup fresh lemon juice, 2 tbsp lemon zest, and 1 tsp vanilla extract in a large bowl. The mixture should be smooth and slightly thick, with no lumps.

I always make sure my eggs are at room temperature first—this helps them incorporate better and prevents the filling from curdling. The lemon zest adds that bright, citrusy punch that makes these bars so irresistible. Don’t skip it, even if it seems like a lot.

Step 3: Bake the Filling

When the crust comes out of the oven, pour the lemon filling evenly over the hot crust. Return the pan to the oven and bake for an additional 20-25 minutes until the filling is set and no longer jiggles in the center when you give the pan a gentle shake.

The center should look firm with a very slight sheen, not liquid. If the top starts to brown too quickly, tent the pan with aluminum foil to prevent over-browning. This step is crucial for that perfect custardy texture.

Step 4: Cool and Dust with Powdered Sugar

Remove the pan from the oven and let it cool completely on a wire rack. This takes about 1 hour at room temperature. Resist the urge to cut into them while warm—the filling needs time to fully set.

Once completely cool, dust the top generously with some of the powdered sugar from your ingredients. I like to use a fine-mesh sieve for an even, professional-looking finish. Slice into bars and serve. For best results, store leftovers in the refrigerator.

Dietary Considerations for This Dish

Keto-Friendly Options

For a keto-friendly version of lemon bars, replace the traditional crust with a mixture of almond flour, butter, and a low-carb sweetener like erythritol. The filling can be made with sugar-free lemon curd or a combination of fresh lemon juice, eggs, and a keto-approved sweetener. This way, you can enjoy the tangy flavor without the carbs! 💪

Gluten-Free

To make these lemon bars gluten-free, swap the all-purpose flour in the shortbread crust with gluten-free flour blends or almond flour. Ensure all other ingredients, like baking powder, are certified gluten-free to avoid cross-contamination. The filling remains naturally gluten-free if using fresh ingredients.

Allergens

This recipe typically contains dairy (butter), eggs, and gluten (flour). For those with allergies, use dairy-free butter and a gluten-free flour alternative. If eggs are a concern, try an egg substitute like aquafaba or a commercial vegan egg replacer for the filling.

Vegetarian Modifications

Lemon bars are naturally vegetarian as long as the ingredients align with your dietary preferences. Just double-check that the butter and other components are vegetarian-friendly (some gelatin-based ingredients may sneak into store-bought shortcuts).

Low-Sodium

To reduce sodium, use unsalted butter and omit or reduce added salt in both the crust and filling. Opt for freshly squeezed lemon juice instead of bottled versions, which may contain added sodium. This small tweak keeps the zesty flavor while cutting back on salt. 📊