Lemon Sugar Cookie Bars are an indulgent twist on classic cookies, combining the soft, chewy texture of sugar cookies with the zesty brightness of lemons. These bars are baked to perfection, creating a delightful dessert that’s both sweet and refreshing. The simplicity of these bars makes them a fantastic choice for any occasion, whether you’re looking for a quick treat to satisfy your sweet tooth or a show-stopping dessert for a gathering. The tantalizing aroma of lemon fills the kitchen as they bake, promising a delicious result that will have everyone coming back for seconds.

Table of Contents

Why You’ll Love This Recipe
Ingredients You’ll Need
How to Make Lemon Sugar Cookie Bars
Storing & Reheating
Chef’s Helpful Tips
Recipe FAQs
Lemon Sugar Cookie Bars

I first discovered Lemon Sugar Cookie Bars for a summer barbecue, where they quickly became the star of the dessert table. Their vibrant flavor and pleasing texture instantly won over my family and friends. For anyone who loves the combination of sweet and tangy, these bars will tick all the boxes. They are easy to make and even easier to share, making them perfect for potlucks, birthday parties, or simply as a sweet treat to enjoy at home. I’m so excited for you to try them!

Why You’ll Love This Recipe

Simple & Quick: Ready to enjoy in just 25 minutes, these bars can be whipped up in no time.
Irresistible Flavor: A perfect balance of sweetness and tang, delivering a delightful burst with every bite.
Eye-Catching Appeal: The cheerful lemon frosting sets off the bars beautifully, making them a hit at any gathering.
Flexible Serving: Enjoy as an afternoon snack, dessert after dinner, or even breakfast with your coffee.
Diet-Friendly Options: Easily adaptable for gluten-free diets—just swap in gluten-free flour!

Ingredients You’ll Need

2 1/2 cups all-purpose flour (300 grams): Provides structure to the bars. You can substitute it with a gluten-free blend if necessary.
1/2 teaspoon baking powder (2 grams): Helps the bars rise a little, contributing to a soft texture.
1/2 teaspoon table salt (9 grams): Enhances the sweetness, balancing flavors beautifully.
1 1/2 cups granulated sugar (297 grams): Adds sweetness and moisture, helping to create that irresistible chewy texture.
14 tablespoons unsalted butter (room temperature, 197.75 grams): Essential for flavor and creates that melt-in-your-mouth quality. Make sure it’s at room temperature for easy creaming.
2 large eggs: Binds the ingredients together, ensuring the bars hold their structure.
2 teaspoons lemon extract (9.9 ml): Infuses the bars with vibrant lemon flavor. Use pure lemon extract for the best taste.
1/2 cup unsalted butter (room temperature, 113 grams): This is for the creamy icing that tops the bars. Again, room temperature is key here for a smooth blend.
5 cups powdered sugar (567.5 grams): Sweetens and thickens the frosting to create a luscious finish.
1/4 cup milk (59 ml or 56.75 grams): Helps achieve the right consistency for the frosting.
2 teaspoons lemon extract: Reiterates the lemon flavor in the icing; feel free to adjust based on your taste preference.
1/8 teaspoon table salt: Balances the sweetness of the frosting.

Preheat the Oven: Preheat your oven to 350°F (175°C) and grease a 9×13 inch baking dish or line it with parchment paper for easy removal.
Mix Dry Ingredients: In a mixing bowl, whisk together 2 1/2 cups all-purpose flour, 1/2 teaspoon baking powder, and 1/2 teaspoon table salt until well combined.
Cream Butter and Sugar: In another large bowl, beat 14 tablespoons of room temperature unsalted butter and 1 1/2 cups granulated sugar together until the mixture is light and fluffy, about 2–3 minutes.
Incorporate Eggs and Extract: Add 2 large eggs and 2 teaspoons of lemon extract to the butter-sugar mixture, mixing until smooth.
Combine Mixtures: Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Don’t overmix; it’s okay if there are a few lumps.
Spread Batter: Pour the batter into your prepared baking dish and spread it evenly with a spatula.
Bake: Bake in your preheated oven for 10-12 minutes until the edges are lightly golden and a toothpick inserted in the center comes out clean.
Cool Completely: Allow the bars to cool in the baking dish for about 20 minutes, then transfer to a wire rack to cool completely.
Prepare Frosting: In a medium bowl, beat 1/2 cup of unsalted butter until creamy. Gradually add 5 cups of powdered sugar, mixing until combined. Add 1/4 cup of milk, 2 teaspoons of lemon extract, and 1/8 teaspoon of salt, and mix until smooth and creamy.
Frost the Bars: Once the bars are completely cool, spread the lemon frosting evenly over the top.
Slice and Serve: Cut into squares, and serve. Watch your guests reach for more!

Storing & Reheating

Store any leftover Lemon Sugar Cookie Bars in an airtight container at room temperature for up to three days. If you want to keep them longer, refrigerate them for up to a week. You can also freeze them wrapped in plastic wrap and then in aluminum foil for up to three months. To refresh them, reheat in the microwave for about 10 seconds, which helps soften the bars without compromising flavor.

Chef’s Helpful Tips

Make sure your butter is at room temperature for easier mixing and a better texture.
Don’t skip the lemon extract; it enhances the flavor powerfully!
If the bars seem too soft when first out of the oven, don’t worry—the texture will set as they cool.
Feel free to adjust the glaze thickness by adding a little more milk for a runnier consistency or more powdered sugar for a thicker icing.

Delicious, refreshing, and so easy to make, these Lemon Sugar Cookie Bars are not just desserts—they’re a joyful bite of sunshine. Whether you’re celebrating a special occasion or simply looking for an afternoon treat, these bars are perfect to enjoy with family and friends. Your kitchen will smell like a sweet lemon grove, and the smiles you’ll receive will make every bite worth it.

Recipe FAQs

Can I use lemon juice instead of lemon extract?

Using fresh lemon juice is an option, but the flavor may be less intense than with lemon extract. To maintain flavor, consider adding more zest or incorporating a mixture of juice and zest.

How do I know when the bars are done baking?

The edges should be lightly golden, and a toothpick inserted in the center should come out clean or with a few moist crumbs. Be careful not to overbake, as the bars will continue to firm up as they cool.

Can I make these bars ahead of time?

Absolutely! You can prepare the bars and store them in the refrigerator, covered, for up to a week. Frost them on the day you plan to serve to keep the icing fresh.

Is it possible to make these gluten-free?

Yes, you can substitute the all-purpose flour for a gluten-free baking blend. Ensure that it contains xanthan gum to mimic the texture!

More Desserts & Appetizers Recipes

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Author: Anna
Prep Time: 15 minutes
Cook Time: 10 minutes
Total Time: 25 minutes
Yield: 24 servings 1x
Category: Desserts
Method: Baking
Cuisine: American

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Description

These Lemon Sugar Cookie Bars provide a burst of citrus flavor with a light and fluffy texture. With simple ingredients like butter, sugar, and lemon extract, they are an easy yet delectable dessert for gatherings or a sweet treat at home.

Ingredients

Scale

2 1/2 cups all purpose flour (300 grams)
1/2 teaspoon baking powder (2 grams)
1/2 teaspoon table salt (9 grams)
1 1/2 cups granulated sugar (297 grams)
14 tablespoons unsalted butter (197.75 grams, room temperature)
2 large eggs
2 teaspoons lemon extract (9.9 ml)
1/2 cup unsalted butter (113 grams, room temperature)
5 cups powdered sugar (567.5 grams)
1/4 cup milk (59 ml or 56.75 grams)
2 teaspoons lemon extract
1/8 teaspoon table salt

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Instructions

Preheat the oven to 350°F and line a 9×13 inch baking dish with parchment paper.
In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
In a large bowl, blend the butter and granulated sugar until light and fluffy using a hand mixer or stand mixer (about 3-6 minutes).
Add the eggs one by one, mixing until incorporated, then mix in the lemon extract, scraping the bowl as necessary.
Stir in the flour mixture on low speed just until combined, being careful not to over-mix.
Press the thick and sticky batter into the lined baking dish, using wet hands if needed.
Bake for 22-25 minutes until edges are golden brown. Allow to cool for one hour.
For the frosting, beat the butter in a mixing bowl, then gradually blend in one cup of powdered sugar, scraping the bowl.
Add milk and lemon extract, then continue adding the powdered sugar gradually until desired consistency is reached. Beat in salt at the end.
Immediately spread the frosting over the cooled bars using an offset spatula.
Cut into 24 equal squares.

Notes

Make sure the butter is at room temperature for easier mixing.
The frosting can be adjusted by adding more or less powdered sugar to achieve your desired consistency.
Store any leftover bars in an airtight container at room temperature.