The Best Low-FODMAP Lemon Square / Lemon Bar Recipe; Gluten-free

I love dessert recipes that incorporate the citrus tang of lemon.  To me, nothing could be better than a sweet and tart creamy flavor, layered with a buttery crunchy crust.  Just like my low-FODMAP Key Lime Pie recipe, these low-FODMAP Lemon Squares aka Low-FODMAP Lemon Bars are sugary, gooey, tangy and crumbly.  A perfect combination of flavors.

While we don’t usually consume lemons in large quantity, the fruit of the lemon is a wonderful source of vitamin C, folate, as well as limonens- a phytonutrient that is found mainly in citrus fruits.  These compounds help in digestion and absorption of other key nutrients and may also have cancer-fighting properties.

These low-FODMAP Lemon Squares are so sunshiney, they will brighten up every table.  They taste as fresh as a spring day.  I bet this low-FODMAP Lemon Squares recipe will be the best you will ever have.  Plus these low-FODMAP Lemon squares are simple to make, and gluten-free.

Enjoy over 300 more low-FODMAP recipes on the blog, including low-FODMAP Dream Bars, low-FODMAP Strawberry Oat Bars or low-FODMAP Pumpkin Bars.  Or if you love lemon as much as I do- check out the low-FODMAP Lemon Poppyseed Layer Cake with Lemon Curd or my Starbuck’s Copycat Iced Lemon Loaf.  So delicious!

Be healthy and happy,

Rachel Pauls, MD


The Best Low-FODMAP Lemon Square / Slice / Bar Recipe; Gluten-free

Although this recipe has not been tested, a single serving should be low-FODMAP based on the ingredients

Serves 16

Prep time: 15 min

Bake: 15 min and 20 minutes

Total time: About 1 hour

Bake 350 F

Ingredients

For low-FODMAP Lemon Squares Crust

  • 1 cup Authentic Foods GF Classical Blend flour (my favorite low-FODMAP flour- check out my low-FODMAP bake off for results); or your preferred low-FODMAP all purpose gluten-free flour
  • 1/4 cup granulated sugar
  • 1 tsp xanthan gum, if not incorporated in your low-FODMAP flour selection already
  • 5 tbsp cold unsalted butter (I have not tried this with vegan spread, shortening or coconut oil, but feel free to let me know if you do!)
  • Vegetable shortening for greasing

For low-FODMAP Lemon Squares filling

  • 3 large eggs
  • 3/4 cup sugar
  • 2 tbsp Authentic Foods GF Classical Blend Flour (*see note above)
  • 1/2 tsp baking powder
  • 1/8 tsp salt
  • 1/3 cup freshly squeezed lemon juice (about 2 medium lemons)
  • 2 tsp lemon zest
  • 1/2 tsp pure lemon extract

For low-FODMAP Lemon Squares garnish:

  • Confectioner’s sugar for sprinkling

Directions

  • Preheat oven to 350 F
  • Grease a 8 inch square pan and line with parchment paper or aluminum foil, grease this also
  • Place low-FODMAP flour, sugar and xanthan gum in large bowl of electric mixer with flat paddle
  • Add butter and mix on low until dough is crumbly
  • Press out crust in bottom of prepared pan until smooth (I like to use the bottom of a measuring cup)
    • The dough should stick together when you press it out
  • Bake for about 15 minutes until lightly golden
  • Prepare filling while crust is baking
  • Beat eggs in the large bowl of mixer at high speed using whisk paddle until foamy and light
  • Add flour, sugar, baking powder, salt and mix
  • Add lemon juice slowly then lemon zest, followed by extract
  • Beat until well blended
  • When finished baking, remove crust from oven. Let it stand about 5 minutes to cool slightly
  • Pour prepared filling over baked crust
  • Place back into oven for 20 minutes until set
  • Cool on wire rack completely
  • Dust with confectioner’s sugar before serving
  • Refrigerate unused portions in covered container

  • These are so pretty…

  • I love low-FODMAP Lemon Bars aka Lemon Squares!

Comments Rating 5 (1 review)

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2 Comments

  1. Kelly September 16, 2019
    • Rachel Pauls Food September 17, 2019

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