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You are here: Home / Bars / Frosted Lemon Bars

Frosted Lemon Bars

06/23/2024 by thetimelessbaker Leave a Comment

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Frosted lemon bars are a classic citrusy brownie-like bar full of lemon flavor. These chewy bars are perfect for when you want something light and refreshing!

frosted lemon bars

Frosted Lemon Bars

Frosted lemon bars are similar in texture to a cake-like brownie, but instead contain a bright lemony citrus taste in place of chocolate. They are frosted with a thin layer of sweet and citrusy powdered sugar frosting, and are the perfect alternative for those non-chocolate lovers. These classic, chewy bars are easy to make, freeze really well and are perfect for when you want something light, yet refreshing.

These frosted lemon bars get their refreshing lemon flavor from the use of lemon zest, lemon juice and lemon extract or baking emulsions. I prefer using baking emulsions since they are water based and do not bake out as much not alcohol based extracts. This means the intense lemon flavor is still there after baking. Baking emulsions can be used with a 1:1 substitution – my favorite brand is LorAnn and you can find them online or at specialty baking stores.

frosted lemon bars

How to Make Frosted Lemon Bars

Frosted lemon bars are an easy recipe to make, freeze really well and yields 24 servings. Not a fan of lemon? See the tips below on how to substitute other citrus flavors.

Ingredients

For the bars

  • 1 1/2 cups granulated sugar
  • 1 cup softened unsalted butter
  • 4 large eggs
  • 2 Tablespoons lemon zest
  • 4 Tablespoons lemon juice
  • 2 teaspoons lemon extract or baking emulsion 
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon salt

For the Frosting

  • 3 cups powdered sugar
  • 1 teaspoon lemon extract/baking emulsion
  • 3 Tablespoons water 
  • 1 teaspoon lemon zest 
frosted lemon bars

Instructions for Frosted Lemon Bars

In a large mixing bowl, cream the unsalted butter with the granulated sugar until fluffy. Add in the eggs, one at a time, followed by the lemon zest, lemon juice and extract/baking emulsion.

Whisk together the flour and salt; add in two separate batches to the wet ingredients. Pour into a greased 9×13 inch pan; bake at 350°F for 23-25 minutes. Cool pan on wire rack; once cool, combine the ingredients for the frosting and spread on top of cooled bars. 

frosted lemon bars

Tips for Frosted Lemon Bars

  • You can substitute equal amounts of lime, orange or grapefruit for the zest, juice and extracts/emulsions in this recipe
  • Baking emulsions are water based and the flavor does not bake out as much as alcohol based extracts; my favorite brand is LorAnn and you can find them online or at specialty baking store
  • Store bars in an airtight container for up to three days
  • Freeze any baked bars for up to 3 months; thaw overnight in the refrigerator
  • Can easily reduce this recipe by half; bake in an 8” x 8” pan for the same amount of time 
frosted lemon bars

Made these frosted lemon bars? Comment and rate below or on Instagram or Pinterest!

Want more lemon recipes?

Lemon Shortbread Bars
A thick layer of buttery shortbread topped with a tart lemon curd filling, dusted with a sprinkling of powdered sugar.
Check out this recipe
Lemon Chiffon Pie
A classic chiffon pie in a baked pastry shell, with a fluffy lemon filling and topped with a layer of sweetened whipped cream.
Check out this recipe
Lemon Oatmeal Crinkle Cookies
A soft and chewy oatmeal cookie with a zest of lemon and a sweet powdered sugar crinkle coating.
Check out this recipe

Frosted Lemon Bars

thetimelessbaker
Frosted lemon bars are a classic citrusy brownie-like bar full of lemon flavor. These chewy bars are perfect for when you want something light and refreshing!
5 from 1 vote
Print Recipe Pin Recipe
Prep Time 20 minutes mins
Cook Time 25 minutes mins
cooling time 2 hours hrs
Total Time 2 hours hrs 45 minutes mins
Course Dessert
Cuisine American
Servings 24 servings
Calories 215 kcal

Equipment

  • mixing bowls of various sizes
  • standard 9”x13” baking pan
  • electric mixer or stand mixer

Ingredients
  

For the bars

  • 1 cup

    softened unsalted butter 


  • 1 1/2 cups granulated sugar
  • 4 large eggs
  • 2 Tablespoons lemon zest
  • 4 Tablespoons lemon juice
  • 2 teaspoons lemon extract or baking emulsion
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon salt

For the frosting

  • 3 cups powdered sugar
  • 1 teaspoon lemon extract/baking emulsion
  • 1 teaspoon lemon zest
  • 3 Tablespoons water

Instructions
 

  • In a large mixing bowl, cream the 1 cup

    softened unsalted butter 


    with the 1 1/2 cups granulated sugar until fluffy.
  • Add in the 4 large eggs, one at a time, followed by the 2 Tablespoons lemon zest, 4 Tablespoons lemon juice and 2 teaspoons lemon extract or baking emulsion.
  • Whisk together the 1 1/2 cups all-purpose flour and 1/2 teaspoon salt; add in two separate batches to the wet ingredients.
  • Pour into a greased 9×13 inch pan; bake at 350°F for 23-25 minutes.
  • Cool pan on wire rack; once cool, combine the ingredients for the frosting(3 cups powdered sugar, 1 teaspoon lemon extract/baking emulsion, 1 teaspoon lemon zest, 3 Tablespoons water) and spread on top of cooled bars.

Notes

  • You can substitute equal amounts of lime, orange or grapefruit for the zest, juice and extracts/emulsions in this recipe. 
  • Baking emulsions are water based and the flavor does not bake out as much as alcohol based extracts; my favorite brand is LorAnn and you can find them online or at specialty baking store
  • Store bars in an airtight container for up to three days
  • Freeze any baked bars for up to 3 months; thaw overnight in the refrigerator
  • Can easily reduce this recipe by half; bake in an 8” x 8” pan for the same amount of time 

Nutrition

Serving: 1barCalories: 215kcalCarbohydrates: 34gProtein: 2gFat: 9gSaturated Fat: 5gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 2gTrans Fat: 0.3gCholesterol: 51mgSodium: 62mgPotassium: 26mgFiber: 0.3gSugar: 27gVitamin A: 282IUVitamin C: 2mgCalcium: 9mgIron: 1mg
Tried this recipe?Mention @thetimelessbaker or tag #thetimelessbaker on Instagram!

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Filed Under: Bars Tagged With: bars, frosting, lemon

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About

Hi, I’m Meredith. I’m a self-taught home baker and lover of old-fashioned and vintage recipes. Here, I love to connect with others through sharing recipes that are inspired by my Midwestern heritage that are classic and timeless. 

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