Lemon Squares

Lemon Squares
Craig Lee for The New York Times
Total Time
1 hour
Rating
4(2,000)
Notes
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The recipe for these sweet, tart squares, adapted from the “Wellesley Cookie Exchange Cookbook” by Susan Mahnke Peery, was published in The Times in December 1990, part of a Christmas cookie roundup. But they can be made for just about any occasion, whether you’re in the holiday spirit or just craving something with a little pucker. The buttery shortbread mellows a lemon topping, as does the dusting of confectioners' sugar. Make it to cap off a weeknight dinner, or for a weekend afternoon snack, paired with a cup of tea. —Dena Kleiman

Featured in: The Spirit of Christmas Past Lives On in Traditional Cookies

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Ingredients

Yield:16 servings
  • 2cups/256 grams flour, plus ¼ cup/32 grams
  • ½cup confectioners' sugar/61 grams, plus 2 teaspoons
  • 1teaspoon kosher salt
  • 1cup/227 grams (2 sticks) unsalted butter, melted
  • 4eggs
  • 2cups/400 grams granulated sugar
  • cup/80 milliliters lemon juice (from about 1 to 2 lemons)
  • ½teaspoon baking powder
Ingredient Substitution Guide
Nutritional analysis per serving (16 servings)

282 calories; 13 grams fat; 8 grams saturated fat; 0 grams trans fat; 4 grams monounsaturated fat; 1 gram polyunsaturated fat; 37 grams carbohydrates; 1 gram dietary fiber; 30 grams sugars; 5 grams protein; 155 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

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Preparation

  1. Step 1

    Heat oven to 350 degrees. In a medium bowl, whisk together two cups flour, ½ cup confectioners' sugar and salt. Add melted butter and stir to thoroughly combine. Spread with clean hands in an even layer into a 9-by-13-inch pan and bake for 25 minutes.

  2. Step 2

    Meanwhile, in a medium bowl, whisk together eggs, granulated sugar, lemon juice, baking powder and remaining flour. Pour onto the hot baked shell and bake for an additional 20 to 25 minutes, or until just set. Using a small, fine meshed sieve, sift remaining confectioners' sugar on top when cool. Cut into equal bars.

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4 out of 5
2,000 user ratings
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Cooking Notes

Needs more lemon juice. This is one of my all-time favorite cookie recipes (I am a sweet-tart addict.) I was checking several copies of the recipe I have and found they are basically, through all time, the same..only varying in whether to include lemon zest in the curd or not. THIS recipe calls for 1/3 C lemon juice. All others suggest 2/3 C and I believe this is the best amount of juice to use. You can halve this recipe and use a 8" square pan.

My go-to lemon bar recipe for 16 years. I usually add more lemon juice (2/3 cup total) and add the zest from all the lemons as well.

I didn’t have any lemons on hand but substituted the canned pinto beans on my shelf. Tabasco for the confectioners sugar and a last minute swap of flour tortilla for the shortbread. Turns out as a lemon square it was awful, but I made a pretty decent burrito.

Confectioner's sugar is important to make the shortbread crumbly. My recipe includes the zest from the lemons, too, and I probably put 5-6 lemons, zest and juice, into each 9x13 pan.

Line the pan with foil to make it easier to lift out the lemon bars.

I didn't have any lemons on hand, but cherries are in season and I had an extra lime; turns out cherry lime bars are very good. Run 12-20 cherries and juice from 1-2 limes through a food processor and substitute for the lemon juice.

Try lining the pan with parchment paper--they come right off!

Why do people make so many changes to the recipe ? I can understand one or two adaptations, but some use limes, cherries, etc. & that completely changes the recipe. I always say, the first time follow the recipe & after that changes are ok.

I baked the recipe just yesterday and: Added almost three times the quantity of lemon juice (lime juice is also an excellent option, in fact). Used half (yes, HALF of the quantity of sugar, both confectioners and granulated), which was sweet enough and definitely lighter. And baked it at 250ºC instead of 350ºC for 15 min instead of 25 for the dough and then an extra 15 min for the whole cake. And the result was still amazing.

I'd like to hear from both sides, the people who measure with a cup and the folks who use a scale. Guaranteed that the two groups are using different quantities of flour and that would seem to be important. One cup of flour, per King Arthur, the flour people, weighs 120 grams. Your recipe shows 128 grams (x 2 = 256). Using weights is supposed to lend more accuracy to recipes but it seems that darn near every recipe writer has different numbers for their flour. Responses??

Used Myer lemons (after using all the zest for Limoncello!) and added the ground seeds of about 6 or 7 Cardamom pods to the shortbread. Also a little sea salt along with the powdered sugar on top. Definitely recommended, adds a subtlety and depth of flavor that sometimes lemon squares lack. And they pop out of the pan fine!

My best friend and I used to make "Lucy's Lemon Squares" from The Peanuts Cook Book (1969). Simple, foolproof recipe, even for a pair of eleven-year-olds. Look it up if you're having trouble with this!

The only thing difficult about these delicious cookies is getting them out of the pan. I recommend lining the pan with foil as the lemon filling sticks to the sides of the pan and makes it hard to get them out

I have made a number of versions of lemon squares over the years, but hadn’t baked any for quite a while. All of the recipes are pretty similar. I did not like the one with olive oil in the lemon filling. Here I was hesitant about the use of melted butter in the shortbread base. The squares turned out very tasty. I may give this recipe another try and use softened, not melted butter, and then decide which version I prefer. I must admit that this batch has been disappearing rather rapidly...

This was easy and tasty. However, next time I would use a bit less of the dough base to get a thinner crust and better crust-to-lemon ratio.

I have been making lemon bars for a long time, and just compared this recipe to my own. Mine has only 1/4 cup of lemon juice and a tablespoon of lemon peel, otherwise just the same, and I must say, they are fantastic. So I would not hesitate to follow this recipe to a "T"; I might still add some peel, though admittedly, the texture is probably smoother without it. If you prefer a more lemony taste, you can add either a little lemon oil 1/4 - 1/2 tsp. (I like Boyajian) or lemon zest.

Straight up wrong measurements. I have no idea in which world 256 grams is converted to 2 cups, but definitely not in mine. The flour to butter ratio is just off, you can't put the same amount of butter as flour, that just feels completely wrong. It also doesn't make ANY sense to bake this for over 40 minutes, it would probably be burnt by the end. Did some measurements differently, but in the end, it managed to taste somewhat good. A little dry, but nothing a scoop of ice cream wouldn't solve.

These were a big hit. I heeded some advice from other reviewers and added the zest from two lemons and used 1/2 cup fresh squeezed juice. They were the perfect texture and flavor for lemon lovers. I would like to try an 8x8 next time to make them a little thicker.

I used coarse kosher salt (as it's my default) and was disappointed to find bits of salt in each bite. Will make with fine next time. I made 1.5x, kept sugar as written, and came out great. not much effort at all.

Double the lemon juice as many bakers here have noted. I also added lemon zest. The best add on is flaky salt (Maldon) topping instead of icing sugar. Takes it to the next level.

This is easy & delicious but oh my gosh so much sugar, even compared with other sweet treats.

reduce the granulated sugar to 1.75 cups and increase the lemon juice to 1/2 cup

tried 1/2 cup lemon juice and further reduced sugar to 1 and 1/3 cup

Caught this onto one of grandma's Cookbooks with the same Midwestern did you?

The best lemon bar recipe can be found in Joy of Cooking: Lemon Bars Cockaigne. They're actually lemon curd bars, calling for six eggs and a cup plus two table spoons of lemon juice and some zest. The filling is dreamy, and the taste is sweet, followed by a pleasantly tart kick of flavor. I have never served these to anything but great acclaim and demands for the recipe.

Everything about this recipe is fabulous! Made it for a theatre group that has very specific tastes and they literally raved about it! Incredibly easy to make within one hour. I too added more lemon juice (3 lemons) and lemon jest based on previous reviews. Divine.

We made this tonight and also added 3 lemons based on comments. Delicious! Definitely a keeper!

These are a little too sweet for my taste. Rather than decreasing the amount of sugar or increasing the amount of lemon juice, either of which affect the consistency of the lemon curd, I added 1/4 teaspoon of citric acid. This made them a little less sweet but didn’t affect texture or change their lemony flavor.

delicious as written, but next time i'd cut the crust recipe in half

This is a PERFECT, EASY lemon bar recipe with two tweaks: -2/3 cup lemon juice instead of 1/3 as written (takes about 4-6 lemons in my experience) -Second bake for 12-15 minutes, not 20-25 as written. Take it out AS SOON as it stops waving when you shake it. There should still be a slight wobble in the middle. Otherwise it will be over baked. It will set as it cools. Voila, perfect lemon bars that disappear at parties.

My first NYT recipe! Once I’d figured out what confectioners sugar is in the UK went pretty well but Would use a lot more lemon next time - wish I’d read other folks comments before cooking this one, also suggest doing second bake a little cooler - 170C max as it was a little brown by the time the eggs were done.

These are super fast, easy & delicious. Added another 1/3C lemon juice & reduced the sugar in the lemon topping by 1/2C. Absolutely scrumptious and the shortbread crust is to die for. SO buttery & crisp. Just like a Danish pastry (I'm 1/2 Danish....all butter, minimal sugar ;-)

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Credits

“Wellesley Cookie Exchange Cookbook” by Susan Mahnke Peery

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