These updated lemon squares are sure to be the hit of any picnic or potluck. We've improved the shortbread crust by using white whole-wheat flour and a butter-canola oil blend to cut saturated fat. The velvety filling has fewer eggs and gets a flavor boost from freshly grated lemon zest.

EatingWell Test Kitchen
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Ingredients

Crust
Filling

Directions

Instructions Checklist
  • To prepare crust: Preheat oven to 350 degrees F. Coat an 8-inch-square or 7-by-11-inch baking pan with cooking spray.

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  • Stir flour, sugar and salt in a medium bowl. Stir in butter, oil and lemon zest until blended and crumbly. Press the dough in an even layer in the prepared baking pan. Bake the crust until firm to the touch, about 20 minutes.

  • To prepare filling: Whisk sugar, lemon zest and juice, egg, egg yolk and flour in a medium bowl until smooth. Pour evenly over the hot crust.

  • Bake until set, 15 to 20 minutes. Let cool completely in the pan on a wire rack, at least 2 hours. Cut into squares with a lightly oiled knife. Dust with confectioners' sugar just before serving.

Tips

Make Ahead Tip: Cover and refrigerate for up to 3 days.

Nutrition Facts

103 calories; 1.8 g total fat; 0.6 g saturated fat; 12 mg cholesterol; 85 mg sodium. 23 mg potassium; 20.6 g carbohydrates; 0.3 g fiber; 14 g sugar; 1.6 g protein; 35 IU vitamin a iu; 2 mg vitamin c; 25 mcg folate; 5 mg calcium; 3 mg magnesium;

Reviews (10)

Read More Reviews
10 Ratings
  • 5 star values: 3
  • 4 star values: 5
  • 3 star values: 1
  • 2 star values: 1
  • 1 star values: 0
Rating: 4 stars
04/26/2019
Crust was a little dry so I will make it with a little more oil and butter and spread out in larger pan. The filling was too thin so I will double recipe next time. I also used Splenda and it tasted a little too sweet. Read More
Rating: 5 stars
01/23/2018
delicious....my husband really loved the crust..I did add a bit less sugar in the filling and doubled the lemon zest we love them zesty...and we have a lemon tree...I did cut them into 12 servings...so the calories went up a bit...but a great recipe...thanks.. Read More
Rating: 4 stars
02/21/2017
I like the flavor and texture of the crust. It provides a nice counterpoint to the sweet tartness of the filling. Both elements are quite tasty and well worth the effort. I'll bake them again for sure! Read More
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Rating: 2 stars
06/25/2013
not bad... I subbed splenda/sugar substitute which worked very well but my crust was not moist enough. It didn't gel together and once cooled it was very powdery to eat. The filling is delicious though! Pros: The filling is very lemony and delicious! Cons: The crust was poor quality Read More
Rating: 3 stars
04/16/2013
Great with alterations I thought this recipe used too much sugar for my kids. I also wanted a much more tangy filling so I changed the recipe as follows: Used 1/4 cup sugar in crust. Doubled filling using: 2/3 cup granulated sugar 5 teaspoons freshly grated lemon zest 1 cup lemon juice 3 large egg 1 large egg yolk 3 tablespoon white whole-wheat flour Turned out wonderfully tangy and the kids loved it! Read More
Rating: 5 stars
02/14/2013
Used coconut oil instead of canola.... Amazing! Read More
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Rating: 4 stars
10/30/2011
i love these! ate the whole thing by myself...in 3 days.:) i totally agree on the crust thickness! i'm going to make it in a 9x13 pan and double the lemon filling. Read More
Rating: 4 stars
10/30/2011
I just made these are they are delicious!!! However my only thing I would change next time is making a little less crust or a little more filling because right now the crust is really thick but the filling is just a tiny layer over the top. But I will be making these again!! Read More
Rating: 4 stars
10/30/2011
i made these for father's day and they were a huge hit! i used a meyer lemon instead of a regular lemon and they were spectacular. the texture is perfect and you would never guess they are low fat or made with whole wheat flour. they didn't come out super attractive but the powdered sugar helped to conceal that. Read More
Rating: 5 stars
10/29/2011
Delicious Filling! I pulled out a box mix of Lemon bars to make as a thank you treat and the crust was fine but the filling was rancid! I used the crust but needed filling so I did a quick search on here and found this recipe. The filling had excellent flavor and texture! I can't wait to try this with the crust! YUM!! Read More