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    🏠Home » Recipes » Appetizer and Party Recipes

    Old Fashioned Lemon Bars

    Sep 23, 2023 by Dan Mikesell AKA DrDan · Last modified: Sep 23, 2023 · 12 Comments

    Jump to Recipe Table of Contents Print     Email Pin
    4.77 from 17 votes

    This Old Fashioned Lemon Bar recipe is easy and quick but still uses a classic shortbread crust and a tangy and sweet custard filling of eggs and lemon juice. It's a small 8X8 recipe that is easy to double for more lemon squares.

    two lemon bars on a white plate.
    Jump To:
    • 🍋Ingredients
    • 👨‍🍳How to Make Lemon Bars
    • 🥣How to Make the Optional Graham Cracker Crust
    • ⬆️How to make a double "family size" recipe
    • 🍋About the Lemons and Lemon Juice
    • ❄️How to Store Lemon Bars
    • ❓FAQs
    • Step-by-Step Photo Instructions
    • 📖 Recipe
    Blue ribbon divider used for visual effect

    We frequently make this super easy recipe as a treat for small groups like coffee meetups, bake sales, or special family meals. A single batch of lemon bars is usually correct, but a double 9X13 batch is about the same amount of work.

    For other easy recipes for small groups, see Blueberry Cream Cheese Bars, Cheesecake Bars, Blueberry Cream Cheese Scones, and Crock Pot Chocolate Peanut Clusters.

    Based on All Recipes - The Best Lemon Bars, with a few modifications and simplifications.

    🍋Ingredients

    lemon juice with lemon bar ingredients
    Ingredients for a double recipe.

    Crust

    • Butter—salted or add a pinch of salt
    • Sugar—white granular sugar
    • Flour—all-purpose flour

    Filling

    • Sugar—white granular sugar
    • Flour—all-purpose flour
    • Lemon juice and zest (optional)
    • Eggs

    Topping

    • Powdered sugar

    👨‍🍳How to Make Lemon Bars

    1. Mix the shortbread crust of softened butter with sugar and flour. Press the crust into a prepared 8X8 pan and bake for 15 to 20 minutes. Or make the optional graham cracker crust.
    2. Mix the custard filling with sugar, flour, eggs, and lemon juice.
    3. Pour the filling into the baking dish and bake for 20 to 22 minutes until the filling is set.
    4. Cool at room temperature and dust with powdered sugar.
    5. Refrigerate before cutting.

    This is a summary of the steps and ingredients. See the printable recipe card or the step-by-step photo instructions below for complete instructions.

    🥣How to Make the Optional Graham Cracker Crust

    A Graham cracker crust can be used if you wish instead of the shortcake crust.

    Crush 16 sheets of Graham crackers. Add ¼ cup powdered sugar, ½ teaspoon cinnamon, and ¼ teaspoon salt if using unsalted butter. Mix to combine. Melt 5 oz. butter and mix in well.

    Press into the bottom of the properly prepared dish and run up the side about ¼ inch. Bake at 350° for 8 to 10 minutes to firm up.

    ⬆️How to make a double "family size" recipe

    This is a very easy recipe to double if you need a large amount.

    1. Use the recipe card and adjust the number of servings to double.
    2. Use the amount of ingredients in the ingredient list, not the instructions—those do not adjust.
    3. A double recipe fits in a 9X13 baking pan.
    4. Bake for about 25 minutes or until the filling is set.

    🍋About the Lemons and Lemon Juice

    A medium lemon will have 2 ½ to 3 tablespoons of juice, so use two medium lemons for the ⅓ cup of juice.

    There is some improvement with real fresh lemon juice, so use them if you have them. Plus, you may add some lemon zest for more taste–about one tablespoon will do.

    The second advantage of bottled lemon juice is that this becomes a complete pantry recipe with ingredients I always have on hand.

    Other Juice: You can get different flavors by using orange or other juices.

    ❄️How to Store Lemon Bars

    Do not store leftovers at room temperature. They are okay for a few hours for serving but should otherwise be refrigerated.

    Refrigerate for 3 days in an airtight container. On the 4th day, they start to lose texture.

    To freeze, skip the dusting of powdered sugar, if possible. Cut into serving size and freeze for a few hours, separated on a tray. After the initial freeze, wrap tightly in plastic wrap and seal in a Zip-Lock bag. They should be good for 4 months.

    ❓FAQs

    What baking dish to use for lemon bars?

    A full recipe, which is what I usually make, uses an 8X8 or 6X9 dish. A 9-inch round will also work. I prefer glass or good non-stick.

    A double recipe fits a 9X13 baking pan or cake pan.

    How to prepare the baking dish.

    Use parchment on the bottom and butter the sides. You will still need a knife around the outside to remove it.

    Helpful Tip: Putting a few dots of butter in the corners of the bottom of the pan will keep the parchment from shifting.

    Blue ribbon divider used for visual effect
    ↑Jump to Table of Contents

    This recipe is listed in these categories. See them for more similar recipes.

    101's Best Recipes, Appetizer and Party Recipes, Dessert Recipes
    Blue ribbon divider used for visual effect

    Step-by-Step Photo Instructions

    All images are for a double batch. All discussion is for a single batch.

    lining baking dish with parchment paper.

    Preheat the oven to 350°. Prep an 8X8 baking dish. Give it a light brush of butter, then cover the bottom with parchment paper—a dot of butter in each corner will hold the paper in place.

    mixing shortbread crust in bowl.

    Soften ½ cup (one stick) of butter in the microwave. Mix the softened butter, 1 cup of all-purpose flour, and ¼ cup of sugar. If unsalted butter, add ⅛ teaspoon salt. It will look crumbly. You can mix by hand, but it is easier with a small mixer.

    pressing shortbread dough into pan.

    Press into the bottom of the prepared pan. Bake for 15 to 20 minutes until firm and lightly brown.

    using s whisk to mix lemon filling,

    Whisk together ¾ cup of sugar and 2 tablespoons of flour. Add 2 eggs and the juice of 1 medium lemon or 3 tablespoons of lemon juice. Mix well.

    pouring lemon filling over shortbread crust.

    Pour the lemon/egg mixture over the baked crust—bake for 20 minutes.

    dusting with powdered sugar.

    Remove from oven, cool for 1 hour at room temperature, and dust with powdered sugar.

    cutting into lemon squares.

    Cool in the refrigerator for 1 to 2 hours before cutting with a sharp knife into about 2-inch squares.

    lemon bar on a spatula.
    ↑Jump to
    TABLE OF CONTENTS
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    📖 Recipe

    two lemon bars on a white plate.

    Old Fashioned Lemon Bars

    From Dan Mikesell AKA DrDan
    This Old Fashioned Lemon Bar recipe is easy and quick but still uses a classic shortbread crust and a tangy and sweet custard filling of eggs and lemon juice. It's a small 8X8 recipe that is easy to double for more lemon squares.
    Tap to leave a Rating
    4.77 from 17 votes
    Print Email CollectionCollected
    Prep Time: 15 minutes minutes
    Cook Time: 40 minutes minutes
    Total Time: 55 minutes minutes
    Servings #/Adjust if desired 16

    Ingredients

    US Customary - Convert to Metric

    Crust

    • ½ cup butter - 1 stick
    • ¼ cup sugar
    • 1 cup all-purpose flour
    • ⅛ teaspoon salt - if using unsalted butter

    Filling

    • ¾ cup sugar
    • 2 tablespoons all-purpose flour
    • 2 large eggs
    • 1 medium lemon - 3 tablespoons of lemon juice
    • 1 tablespoons lemon zest - optional

    Topping

    • 1 tablespoons powdered sugar
    Prevent your screen from going dark

    Instructions

    • NOTE: Images are for a double recipe. Preheat oven to 350°. Prep a 9 by 13 baking dish. Give it a light brush of butter, then cover the bottom with parchment paper. You may also use crossed sheets of parchment paper.
      lining baking dish with parchment paper
    • Soften ½ cup (one stick) of butter in the microwave. Mix the softened butter, 1 cup of all-purpose flour, and ¼ cup of sugar. If unsalted butter, add ⅛ teaspoon salt. It will look crumbly. You can mix by hand, but it is easier with a small mixer.
      mixing crust dough of butter with flour and sugar with electric mixer
    • Press into the bottom of the prepared pan. Bake for 15 to 20 minutes until firm and lightly brown.
      pressing the raw crust dough into the baking dish
    • Whisk together ¾ cup of sugar and 2 tablespoons of flour. Add 2 eggs and the juice of 1 medium lemon or 3 tablespoons of lemon juice. Mix well.
      mixing filling with whisk in a glass bowl
    • Pour the lemon/egg mixture over the baked crust—bake for 20-22 minutes until the filling is set.
      pouring filling over baked crust
    • Remove from oven, cool for 1 hour at room temperature, and dust with powdered sugar.
      dusting cooked lemon bars with powder sugar
    • Cool in the refrigerator for 1 to 2 hours before cutting with a sharp knife into about 2-inch squares.
      cutting the bars into squares with a knife
    See the step-by-step photos in the post. Some recipes have an option to display the photos here with a switch above these instructions but the photos DO NOT print.

    Your Own Private Notes

    Click here to save your own private notes only you will see. These will print and be saved for your next visit.
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    Recipe Notes

    Pro Tips

    1. An easy recipe to double in a 9X13 pan and add a few minutes to the cooking time.
    2. You may use fresh lemons or lemon juice.
    3. If you want a Graham cracker crust instead of shortbread, see details in the post.
    4. If using fresh lemon, add some lemon zest for more taste–about 1 tablespoon will do.
    5. Be sure to cool completely before cutting.
    6. The bars should be refrigerated for storage and should be good for 3-4 days.

    To adjust the recipe size:

    You may adjust the number of servings in this recipe card under servings. This does the math for the ingredients for you. BUT it does NOT adjust the text of the instructions. So you need to do that yourself.

    Nutrition Estimate

    Calories : 142.1 kcal (7%)Carbohydrates : 19.8 g (7%)Protein : 1.8 g (4%)Fat : 6.5 g (10%)Saturated Fat : 3.9 g (20%)Polyunsaturated Fat : 0.4 gMonounsaturated Fat : 1.7 gTrans Fat : 0.2 gCholesterol : 38.5 mg (13%)Sodium : 54.8 mg (2%)Potassium : 21.9 mg (1%)Fiber : 0.2 g (1%)Sugar : 13.1 g (15%)Vitamin A : 211.1 IU (4%)Vitamin C : 0.7 mg (1%)Calcium : 6.8 mg (1%)Iron : 0.5 mg (3%)
    Serving size is my estimate of a normal size unless stated otherwise. The number of servings per recipe is stated above. This is home cooking, and there are many variables. All nutritional information are estimates and may vary from your actual results. To taste ingredients such as salt will be my estimate of the average used.
    Course : Dessert
    Cuisine : American

    © 101 Cooking for Two, LLC. All content and photographs are copyright protected by us or our vendors. While we appreciate your sharing our recipes, please realize copying, pasting, or duplicating full recipes to any social media, website, or electronic/printed media is strictly prohibited and a violation of our copyrights.

    Editors Note: Originally published February 7, 2017. Updated with expanded options, refreshed photos, and a table of contents to help navigation.

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    1. Julie

      July 23, 2021 at 7:22 pm

      I adore lemon bars. Can these be made in a steam only oven (no crust browning)?

      Reply
      • Dan Mikesell AKA DrDan

        July 23, 2021 at 7:25 pm

        Hi Julie,

        Welcome to the blog.

        I doubt it would be good. The browning of the crust keeps the custard from soaking in.

        Dan

    2. Joanne Goglia

      December 12, 2020 at 9:55 am

      Can these lemon bars be made using Splenda in place of sugar?

      Reply
      • Dan Mikesell AKA DrDan

        December 12, 2020 at 10:05 am

        Hi Joanne,
        Welcome to the blog.

        There is a granular Splenda they suggest for baking. (I think that is still right, it has been a few years.) I have always found it leaving an odd taste. I have not tried it in this recipe.

        So I suspect yes but I wouldn't. This is all about that taste balance of the lemon with the sweetness,

        Dan

    3. Nancy Dugger Weeks

      February 03, 2018 at 7:47 pm

      Delicious! Quick & easy. It's citrus season here. I had to make two pans of it this week to keep up with family demand.

      Reply
    4. laurajay

      January 26, 2018 at 4:45 pm

      Lemon bars are one of my favorites and have never tried from scratch, can't wait, am sure as yummy as all your recipes, Thank you!

      I look so forward to your posts :) and picts of the puppies

      Reply
    5. Carolyn

      February 12, 2017 at 5:10 pm

      I halved the recipe and made an 8" square pan size. These were really good and very easy. I needed to add a few minutes more to the cook time when browning the base. I wasn't sure what the lemon filling's appearance should look like when finished (it puffed up a little while cooking) but I cooked it till it was set without any wet spots. My only problem was when I poured the lemon filling in and some flowed under one edge of the cookie base. I think next time I might make a bit of a ridge at the edge to keep the filling enclosed at the sides. I'm also wondering about storage - refrigerate or room temp, tightly or loosely covered?

      Thanks so much for the recipe!

      Reply
    6. Carolyn

      February 11, 2017 at 8:36 pm

      This recipe looks delicious, but I noticed that he filling directions say to mix in 1/4 cup flour, however the ingredients show 1/3 cup flour, which is the correct amount of flour for the filling? Also, I'm wondering if this recipe can be halved using an 8" square pan?

      Reply
      • DrDan

        February 11, 2017 at 8:57 pm

        1/3 is correct. I had to up the flour for some extra lemon juice. Fixed.
        The area of the 13X9 pan is 117 sq. inches. The 8x8 is 64 so close enough. A 6X8 baking dish would also do. A nine inch round is about 64 sq. inches also.
        Dan

    7. Carolyn R.

      February 11, 2017 at 8:31 pm

      This recipe looks delicious, but I noticed that he filling directions say to mix in 1/4 cup flour, however the ingredients list 1/3 cup flour, which is the correct amount of flour for the filling?

      Reply
    8. Dee

      February 08, 2017 at 4:32 pm

      This looks delicious. Is that icing/powdered/confectioners sugar in with the eggs?

      Reply
      • DrDan

        February 08, 2017 at 4:35 pm

        No that is just the flour before I did the whisking.
        Dan

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