gluten free lemon bars recipe photo

Gluten Free Lemon Bars

Easy Gluten Free Lemon Bars Recipe with a simple gluten free shortbread crust

Course Dessert
Cuisine American
Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Servings 12 squares
Calories 371 kcal
Author Noshtastic


Gluten Free Lemon Bar Shortbread Crust

Gluten Free Lemon Bars Topping

  • 1 cup sugar 300g
  • 2/3 cup fresh lemon juice 150mls - from about 5 lemons
  • 2 large eggs beaten
  • 7 egg yolks
  • 1/2 cup butter 112g
  • 2 tbsp gluten free powdered sugar to dust


  1. Recipe newly updated in 2018, for details on previous version please read the recipe notes.

Make the Gluten Free Shortbread Crust

  1. Preheat your oven to 350F

  2. Line the base and sides of a 9x13 baking pan with parchment paper

  3. Cream butter and sugar together.

  4. In a separate bowl measure the white rice flour, brown rice flour, cornstarch,  xanthan gum, baking powder and mix well to combine

  5. Add flour mix to butter/sugar and mix well until combined. form the mixture into a ball either by hand or using the paddle attachment on your mixer.

  6. The shortbread dough may be soft, especially if you used vegan butter. If this is the case simply refrigerate it for 30 minutes to 1 hour to firm up.

  7. Press your dough into the parchment lined baking pan and spread out evenly using an offset spatula or the back of a spoon.

  8. Bake at 350F for 20 mins or until lightly brown at the edges.

Make the Gluten Free Lemon Bar Topping

  1. Add the lemon juice, eggs, sugar, and butter, to a pan over a low to medium heat and stir constantly until it starts to thicken. It will take about 5-6 minutes. 

  2. Don't panic if it starts to curdle, but do ensure that you don't have it on too high a heat. 

  3. Once it's thickened up to almost lemon curd consistency, remove it from the heat and pass it all through a sieve.

  4. Pour the sieved Gluten Free Lemon Bars topping over the cooked shortbread crust and return to the oven to bake for a further 10-15 minutes.

  5. Remove from the oven and cool in the fridge for at least two hours or overnight to let it set up. The lemon bars will become firmer the longer they are chilled.

  6. Remove from the baking pan using the parchment to carefully lift them out, then cut into pieces.

Recipe Notes

2015 Gluten Free Lemon Bars Recipe

I recommend the new version of my recipe as it works every time, but if you prefer the old version you'll find the ingredients and directions listed below.

The gluten free shortbread crust is the same in both versions, but the lemon bar toppingĀ  ingredients and method of cooking have been updated and improved.

Here's the original ingredients for the gluten free lemon bar topping. If you use these ingredients instead of the ones now listed in the recipe, simply mix them together and when shortbread base is cooked, pour over topping and return to the oven to bake for a further 30 minutes or until the center is set and no longer moves when you shake the pan. Chill for at least two hours in the fridge.

1.5 cups sugar

1/2 cup fresh lemon juice

4 large eggs

1/4 cup gluten free flour

Nutrition Facts
Gluten Free Lemon Bars
Amount Per Serving
Calories 371 Calories from Fat 198
% Daily Value*
Fat 22g34%
Saturated Fat 13g81%
Cholesterol 192mg64%
Sodium 192mg8%
Potassium 77mg2%
Carbohydrates 38g13%
Sugar 22g24%
Protein 3g6%
Vitamin A 780IU16%
Vitamin C 5.3mg6%
Calcium 34mg3%
Iron 0.5mg3%
* Percent Daily Values are based on a 2000 calorie diet.