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Perfect Lemon Bars

4.61 from 48 votes

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These Lemon Bars are the quintessential party dessert, baking up perfectly sweet while still lemony and tart. Very few, simple ingredients are needed to make this recipe from scratch and they always are the first to go at any get-together. 

Lemon Bars stacked on top of each other on a white plate


 

The Perfect Lemon Bar Recipe

The trouble with lemon bar recipes on the internet is finding the right one with that perfect balance between the buttery and sweet shortbread crust with the gooey, tart, and sweet (but not too sweet) very lemon filling. There aren’t that many variables, but not having enough lemon juice or even too much can give you lackluster lemon bars. It’s taken me a little time to get there, but we made it and today is the day you all get this fabulous lemon bar recipe that (hopefully) won’t let you down.

Let’s Talk Lemons

I want you to have the best possible results, so let’s talk lemons, shall we?

Do I have to use fresh lemon juice?

Yes! If you want that super tart and sweet balance that lemons bars are known for, you need to use the real stuff. Please please please don’t use the kind from the bottle!

How many lemons will I need?

There are large and small lemons on the market and all will yield different amounts of juice. I would recommend getting 3 large lemons for this recipe to juice. I usually am ok with just two, but sometimes you get a less juicy lemon and will need to top off your half cup with an extra squeeze from that third one.

cut lemon bars in a parchment paper lined baking dish

Shortbread Crust

These lemon bars are keeping things classic with a shortbread crust. I really love using powdered sugar in the shortbread base because its finer texture makes the shortbread a little more tender which works perfectly with the slightly gooey and sticky lemon filling. Mix that with some softened salted butter, flour, and some vanilla for flavor and you’ve got yourself a killer base.

If you’re not into shortbread feel free to make the base something you like. I think a sugar cookie base would be yummy or something like a graham cracker crust but made from golden Oreos or Nilla wafers. The possibilities are endless!

Can I Double this Lemon Bar Recipe?

Yes! The recipe as written is meant for a square 8×8 or 9×9 baking dish. If you’d like to double it, bake in a 9×13 pan. The pan is not exactly double but works perfectly fine.

lemon bars stacked on top of each other on a white plate

How to Make Lemon Bars

For full details on how to make lemon bars, see the recipe card down below 🙂

Prep and Preheat

Spray 8×8 or 9×9 square glass baking pan with nonstick cooking spray and line parchment paper (optional). Lightly spray parchment with more cooking spray and set aside. Preheat oven to 350 degrees.

Do I have to use a glass pan?

No, but I would strongly recommend it. Metal pans tend to give off a metallic flavor to the bars after baking, so to avoid that, bake in a glass dish.

Make Shortbread Crust

In a medium-sized bowl, mix butter, flour, powdered sugar, and vanilla until a dough starts to form. If you notice the dough not coming together, your butter may be too cold. Mix with your hands so the heat from your hands can help bring the dough together. 

Bake Crust

Press dough evenly into the bottom of the prepared pan. Bake 12-15 minutes or until edges are barely golden brown.

Make Lemon Filling

While crust bakes, make the lemon filling. Whisk sugar together with lemon juice, eggs, and flour. Once the crust is done baking, pour lemon filling over the hot crust.

Bake, Cool, and Garnish!

Bake 20 minutes or until set. Cool completely, cut into squares and top with powdered sugar.

Why do I have a thin, white layer on top of my lemon bars after baking?

These are air bubbles that got caught in the lemon filling! Having these air bubbles show up on top of your baked lemon bars is completely normal! It won’t change the taste and is nothing that a little extra powdered sugar can’t cover 😉 

lemon bars stacked on top of each other on a white plate

Storing Lemon Bars

I like storing my lemon bars in an airtight container in the fridge. When you pull them out, you may need to add another light layer of powdered sugar, but besides that, they should last a good week in the fridge (if you don’t eat them all first!)

Freezing Instructions

This lemon bar recipe can be made ahead of time by freezing it for up to 3-4 months.

To Freeze. Cut the cooled bars (without powdered sugar) into squares, then place them onto a baking sheet. Freeze for 1 hour. Individually wrap each bar in aluminum foil or plastic wrap and place them into a large plastic bag to freeze.

To Serve. Thaw in the refrigerator overnight, then dust with powdered sugar right before serving.

top down view of lemon bars on a white plate

More Lemon Recipes to Make!

Pin/print/bookmark/save this recipe! It’s such a good classic to have around. The printable recipe card is down below, enjoy 🙂

Lemon Bars stacked on top of each other on a white plate

Classic Lemon Bars

Katie Cooksey
This Lemon Bar Recipe is the quintessential party dessert, baking up perfectly sweet while still lemony and tart. Very few, simple ingredients are needed to make this recipe from scratch and they always are the first to go at any get-together. 
4.61 from 48 votes
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Course Dessert
Cuisine American
Servings 16 bars
Calories 144 kcal

Ingredients
 
 

For the Shortbread Crust:

  • 1/2 cup salted butter softened
  • 1 cup all purpose flour
  • 1/4 cup powdered sugar
  • 1 tsp vanilla extract

For the Lemon Filling:

  • 1 cup granulated sugar
  • 1/2 cup lemon juice fresh
  • 3 whole eggs
  • 1/4 cup all purpose flour
  • powdered sugar for garnish

Instructions
 

  • Spray 8×8 or 9×9 square glass baking pan with nonstick cooking spray and line parchment paper (optional). Lightly spray parchment with more cooking spray and set aside. Preheat oven to 350° F.
  • In a medium-sized bowl, mix butter, flour, powdered sugar, and vanilla extract until a dough starts to form. If you notice the dough not coming together, your butter may be too cold. Mix with your hands so the heat from your hands can help bring the dough together. 
  • Press dough evenly into the bottom of the prepared pan. Bake 12-15 minutes or until edges are barely golden brown.
  • While crust bakes, make the lemon filling. Whisk sugar together with lemon juice, eggs, and flour. Once the crust is done baking, pour lemon filling over the hot crust.
  • Bake 20 minutes or until set. Cool completely, cut into squares and top with powdered sugar.

Nutrition

Calories: 144kcalCarbohydrates: 22gProtein: 1gFat: 5gSaturated Fat: 3gCholesterol: 15mgSodium: 51mgPotassium: 16mgSugar: 14gVitamin A: 175IUVitamin C: 3mgCalcium: 3mgIron: 0.5mg
Keyword how to make lemon bars, lemon bar recipe, lemon bars
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4.61 from 48 votes (9 ratings without comment)

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Recipe Rating




65 Responses
  1. Francesca

    5 stars
    Had to go gluten free recently, anyone find a good alternative for this amazing recipe that I’d love to make again!!?

  2. Polly

    5 stars
    I’m a terrible cool and only had a 9×9 pan. These came out wonderful 🙂 I would highly recommend. Since I know the process more now, I will bake the shortbread for a bit more to get it crispier for my taste but the recipe overall is still great

    5/5bstars

  3. Cindy

    5 stars
    Just perfect. I wanted a small batch to bake for 4 people rather than a 9 by 13 pan size. All of my go to sites had the 9×13 recipes so I found your site and tried my first recipe from here. The bars were perfect nice and lemony and a lovely mildly sweet shortbread crust. That was Saturday. Gone before Sunday night. Thank you for the recipe. I’ll be back to try more.

  4. Judy

    5 stars
    These were delicious!!! Better than the ones I buy at my favorite gourmet bake shop. Can I use almond flour? My grandkids need gluten free.

  5. Lexie

    5 stars
    So glad I tried this recipe! These came out perfect, I added an extra tablespoon of lemon juice and a layer of lemon zest on top 🙂

  6. Phuong Thao Duong Pham

    5 stars
    We are addicted to these delicious lemon bars now. Thank you very much for sharing this amazing recipe.
    I have a problem of keeping the icing sugar on top of the bars. The icing sugar disappeared after I put them in the fridge.
    Do you have any tips for me?

      1. Lisa

        King Arthur Flour sells a non melting powdered sugar- I buy it online. It holds up wonderfully. I never dust desserts with anything else

  7. Amy

    5 stars
    I’ve only used the recipe for “Lucy’s Lemon Squares” from the Peanuts cookbook I got at age 8 – in 1968. After all these years, I have a new recipe. Sorry Lucy, but Lauren’s Perfect Lemon Bars have bumped you out of first place in my house!

Hi, I'm Katie, a professional recipe developer who spends countless hours perfecting recipes so you can know with confidence that what you see is exactly what you’ll get.

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