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Gluten Free Citrus Slice

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This quick and easy Gluten Free Citrus Slice Recipe features a gluten-free arrowroot biscuit base infused with the zest and juice of lemon and orange. Topped with a creamy 3-ingredient citrus icing! Perfect for a quick treat and lunchboxes, this slice brings a burst of bright citrus flavors in every bite!

Slice squares in a stack.

Gluten Free Citrus Slice Recipe

This gluten free citrus slice marries the fresh and bright tang of fresh lemon and orange with the sweetness of condensed milk, all set on a gluten free base made from gluten free arrowroot biscuits.

The smooth topping is created with melted butter, powdered sugar, lemon and orange juice. This no-bake slice is bound to be a hit in lunchboxes and at gatherings alike!

Best Gluten Free Slice Recipes

  • Gluten-Free Lemon Slice – Enjoy a zesty, refreshing treat with this gluten-free lemon slice, perfect for a sweet, tangy snack!
  • Gluten Free Passionfruit Slice – This quick and easy slice is made with a gluten-free arrowroot biscuit base and a 3-ingredient passionfruit icing!
Squares of citrus slice on pink plate.

Must Have Tools

For making this recipe, it’s essential to have these Amazon affiliate tools at your disposal.

Can I use other gluten-free biscuits?

Yes, you can use any gluten-free biscuits of your choice, such as gluten free digestive biscuits. Arrowroot biscuits work well for this recipe, but feel free to experiment with others.

Free from gluten citrus slice preparation.

Can I use other citrus fruits in this recipe?

Yes, absolutely! You can use lime or grapefruit zest and juice to create different variations of this citrus slice.

How do I crush the biscuits without a food processor?

You can place the biscuits in a zip-lock bag and crush them with a rolling pin or a heavy object until they are fine crumbs.

Gluten free citrus slice assembly.

Why is my citrus icing too runny or too thick?

If your citrus icing is too runny, add more sifted icing sugar, a tablespoon at a time, until you reach the desired consistency. If it’s too thick, add a little more lemon or orange juice to thin it out.

Expert Tips

  • Consistency of the Base: Make sure the biscuit crumbs are finely processed for a smooth base. This helps in forming a solid layer that holds together well when sliced.
  • Even Spreading: Use the back of a spoon, a small offset spatula or your hands to press the base mixture firmly into the pan. This ensures the base is compact and even, which is crucial for a neat slice.
  • Sifting the Icing Sugar: Always sift your icing sugar before mixing to avoid lumps in your icing. This creates a smoother finish.
Gluten free citrus slice squares in a stack.

How to store gluten free citrus slice

Storage: Store the slice in an airtight container in the refrigerator for up to 1 week. 

Freeze: For longer storage, wrap the entire slab or individual slices in cling film, then place in a freezer-safe bag or container. It can be frozen for up to 3 months.

Thaw: Thaw the slices in the refrigerator overnight. For quicker thawing, leave them at room temperature for a few hours until they are soft enough to eat.

If you enjoy this recipe, please consider leaving a ⭐️ star rating and a comment review below. I love to hear what you think and it’s much appreciated. Thank you! Your email address will not be published. Sam x

Gluten free citrus slice squares in a stack.

Gluten Free Citrus Slice

Samantha Pickthall
This quick and easy Gluten-Free Citrus Slice, is made with a gluten-free arrowroot biscuit base and a 3-ingredient lemon and orange icing!
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Prep Time 25 minutes
Chill Time 3 hours
Total Time 3 hours 25 minutes
Course Dessert
Cuisine American
Servings 16 squares
Calories 273 kcal

Ingredients
 
 

Biscuit Base

  • 200 g (7 oz. / 1 packet) gluten-free arrowroot biscuits
  • 1 1/2 cups desiccated coconut
  • 1 Tbsp lemon zest, from one large lemon
  • 1 Tbsp orange zest, from one large orange
  • 1/2 cup (150g / 5.3 oz.) sweetened condensed milk
  • 60 g unsalted butter, melted
  • 2 Tbsp lemon juice, from one large lemon, will also provide enough for icing
  • 2 Tbsp orange juice, from one large orange, will also provide enough for icing

Citrus Icing

  • 2 1/2 cups powdered sugar / icing sugar
  • 60 g unsalted butter, melted
  • 1 Tbsp lemon juice
  • 1 Tbsp orange juice

Instructions
 

Biscuit Base

  • Prepare Baking Pan: Line a 9 x 9 inch (22cm x 22cm) square baking pan with parchment paper. Set aside.
  • Crush Biscuits: In a high-speed food processor, crush the biscuits to a fine crumb.
  • Mix Base Ingredients: Transfer the biscuit crumbs to a large mixing bowl. Stir in the desiccated coconut, lemon zest and orange zest. Add sweetened condensed milk, melted butter, and lemon and orange juice. Mix with a wooden spoon or spatula until the mixture is well combined.
  • Press into Pan: Press the mixture firmly into the prepared pan, using the back of a spoon, a spatula, or your hands. Place in the refrigerator to chill while preparing the icing.

Citrus Icing

  • Make Citrus Icing: In a medium-sized mixing bowl, sift the icing sugar. Add melted butter and lemon and orange juice. Whisk until smooth and thick.
  • Apply Icing: Spread the icing evenly over the biscuit base.
  • Chill to Set: Return the pan to the refrigerator and chill for at least 2-3 hours, or until the icing is firm and the base is solid.
  • Slice and Serve: Once set, remove the slice from the pan, peeling away the parchment paper. Cut into squares and enjoy!

Notes

  • Storage: Store the slice in an airtight container in the refrigerator for up to 1 week. 
 
  • Freeze: For longer storage, wrap the entire slab or individual slices in cling film, then place in a freezer-safe bag or container. It can be frozen for up to 3 months.
 
  • Thaw: Thaw the slices in the refrigerator overnight. For quicker thawing, leave them at room temperature for a few hours until they are soft enough to eat.

Nutrition

Calories: 273kcalCarbohydrates: 34gProtein: 2gFat: 15gSaturated Fat: 11gPolyunsaturated Fat: 0.3gMonounsaturated Fat: 2gTrans Fat: 0.2gCholesterol: 29mgSodium: 53mgPotassium: 92mgFiber: 2gSugar: 28gVitamin A: 221IUVitamin C: 4mgCalcium: 33mgIron: 0.3mg
Tried this recipe? Let us know how it was!
Free from gluten citrus slice pin.

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