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These lemon cookie bars are soft, buttery, and zesty. They’re made with just 7 basic ingredients, naturally flavored, and so easy to make!

Close-up of lemon sugar cookie bars cut into squares, topped with lemon zest. One bar is slightly lifted, revealing a soft, crumbly texture.

I can’t explain it, but there is just something about cookie bars that feels so different from regular cookies. They also are so much easier because you just plop all the dough into a pan and bake!

My soft and chewy lemon cookies are one of my favorite recipes to make once the weather starts warming up because anything lemon-ey just puts me right in the mood for spring!

Why You’ll Love My Lemon Cookie Bar Recipe

  • They can be made with either dairy free butter or regular butter – the recipe has been tested both ways!
  • You only need 7 ingredients to make the cookie bars.
  • They’re great to slice up and feed a crowd, and the recipe can easily be doubled for a 9×13 pan.

Ingredients Needed

Baking ingredients on a tray: bowl of flour, sugar, two lemons, butter, an egg, and a pinch of salt. Labels identify each ingredient.
  • Lemon juice and lemon zest: I recommend using real lemon for the lemon juice (rather than from concentrate), since you already need a real lemon for the zest.
  • Flour: this recipe should be made using all purpose flour, since it provides the softest texture for the cookie bars.
  • Extra Ingredients: feel free to add 3/4 cup white chocolate chips if you’d like!

Step by Step Instructions

A glass bowl filled with creamy, light-yellow whipped butter on a wooden table, evoking a sense of anticipation and warmth in baking preparations.

Step 1: Cream the butter, sugar, and lemon zest until fluffy!

A glass bowl on a wooden surface holds creamy, mixed dough, suggesting a baking activity. The dough's texture is soft and slightly lumpy.

Step 2: Mix in the egg and lemon juice!

A metal baking pan lined with parchment paper, held by clips, contains an uncooked batter evenly spread. It sits on a wooden surface, ready for baking.

Step 3: Stir in dry ingredients, then scoop the dough into a pan.

Close-up of lemon bars arranged in a grid, with a stack of four bars slightly offset. Each bar is flecked with lemon zest, conveying a fresh, homemade feel.

Step 4: Sprinkle with sugar then bake!

Close-up of lemon bars arranged in a grid, with a stack of four bars slightly offset. Each bar is flecked with lemon zest, conveying a fresh, homemade feel.

Expert Tips

  • If you’re wondering why there is no baking soda or baking powder in this recipe – no it’s not a mistake! When testing the recipe I found baking soda/powder both negatively affected the texture of the bars or made them cakey rather than chewy.
  • Always properly measure your flour – even a few tablespoons more flour can dry out the bars.
  • Don’t worry too much about making sure the top of the dough is perfectly smooth before baking. It will be covered in sugar and look better once it’s baked!
  • When zesting the lemon, be sure not to zest the white part – it will make the cookie bars very bitter!

Storage Instructions

Store the lemon cookie bars in an airtight container for up to 4 days. You can also wrap them in plastic wrap and freeze!

More Recipes You’ll Love

If you make this recipe, let me know how it went in the comments below, I’d love to hear from you! You can also tag me on Instagram or Facebook so I can check it out!

Close-up of lemon sugar cookie bars cut into squares, topped with lemon zest. One bar is slightly lifted, revealing a soft, crumbly texture.
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Lemon Cookie Bars

These lemon cookie bars are soft, buttery, and zesty. They're made with just 7 basic ingredients, naturally flavored, and so easy to make!

Ingredients
 

  • ¾ cup (158 g) butter, (regular or dairy free)
  • ¾ cup (150 g) granulated sugar, (plus 2 Tbsp more for topping)
  • 1 egg
  • 2 teaspoons lemon juice
  • Tablespoons lemon zest, (around 2 medium lemons)
  • ½ teaspoon salt
  • cup (218 g) all-purpose flour

Instructions
 

  • Preheat the oven to 350°F (180℃) and line an 8×8 baking pan with parchment paper. Leave parchment paper hanging over the sides of the pan so you can easily remove the bars from the pan.
  • In the bowl of a handheld mixer or standing mixer, combine butter, sugar and lemon zest until light and fluffy (around 1 minute).
  • Add in the egg and lemon juice, then mix again.
  • Next, add in the flour and salt and mix again until just combined.
  • Transfer the cookie dough into your prepared pan and smooth it out evenly. It may look a bit lumpy on top, thats okay. Sprinkle the top with 2 Tbsp of white sugar
  • Bake for 18-25 minutes. The edges will be a light golden brown and the middle will look soft. A toothpick inserted in the middle will come out clean.
  • Let cool completely in the pan before slicing. Enjoy!

Equipment

Notes

Measuring Flour: Properly measure your flour and cocoa powder using either a kitchen scale or the scoop and level method.
Storage Instructions: Store un-sliced in the pan, covered tightly with tinfoil 3-4 days. Store sliced cookie bars at room temperature in an airtight container. 
Calories: 167kcal, Carbohydrates: 20g, Protein: 2g, Fat: 9g, Saturated Fat: 6g, Polyunsaturated Fat: 0.4g, Monounsaturated Fat: 2g, Trans Fat: 0.3g, Cholesterol: 33mg, Sodium: 145mg, Potassium: 23mg, Fiber: 0.5g, Sugar: 9g, Vitamin A: 281IU, Vitamin C: 1mg, Calcium: 8mg, Iron: 1mg
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The calorie information provided for this recipe is an estimate. The accuracy of the calories listed is not guaranteed.