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Keto Lamingtons

Keto Lamingtons

An Australian institution – the Lamington! These Keto Lamingtons use a deliciously moist sponge and a homemade strawberry chia seed jam to create the perfect Australian treat. With a little bit of effort, your friends and family won’t even know these are Keto lamingtons.

You could also bake this in a round springform pan and create a Lamington Cake. If you don’t mind getting your fingers dirty, you can use your hands to coat the cake in the chocolate icing and coconut, or otherwise you can use two forks but it can be a bit fiddlier.

The sponge cake is also delicious on its own and you could have it just with cream and some strawberries for a simpler dessert recipe. I’m also toying with the idea of creating a keto tiramisu or a keto trifle – stay tuned!

Here’s the recipe for my keto strawberry chia seed jam used – make a double batch if you like it extra jammy!

I used Prana ON Protein Powder and liked the vanilla taste it added. Whatever protein powder you use, just make sure you like the flavour as it will come through in your sponge cake.

Keto Lamingtons, keto desserts, keto australian recipes

Keto Lamingtons, keto desserts, keto australian recipes

Keto Lamingtons, keto desserts, keto australian recipes

Keto Lamingtons

If you are looking for an Australian dessert, keto lamingtons are sure to be a hit! Make my keto chia seed strawberry jam for an extra sweet treat, or make them simply with sponge and chocolate icing. You could also double the jam recipe if you like a stronger strawberry flavour. 
5 from 1 vote
Prep Time 30 mins
Cook Time 30 mins
Total Time 1 hr
Servings 16 lamingtons
Calories 121 kcal


Strawberry Chia Seed Jam

  • 1 cup strawberries
  • 1/2 tablespoons lemon juice
  • 1 tablespoon xylitol
  • 1.5 tablespoons chia seeds
  • 1/2 teaspoon vanilla

Sponge Cake

  • 9 eggs separated
  • 1/2 teaspoon cream of tartar
  • 1 teaspoon vanilla extract or pase
  • 1/2 cup xylitol
  • 50 grams butter melted and cooled
  • 1/2 teaspon salt
  • 1/4 cup coconut flour
  • 1/4 cup vanilla protein powder I use Prana On Power Plant Protein (see link above)
  • 1 teaspoon baking powder


  • 1 cup confectioners xylitol or blitz regular xylitol in a food processor
  • 2 tablespoons cocoa
  • 1/2 tablespoon butter
  • 8 tablespoons boiling water
  • 1 cup dessicated coconut


Sponge Cake

  • Preheat the oven 170C / 338F and line a 20 centimetre square cake pan with baking paper. 
  • To make the sponge, separate the eggs into two large bowls. Whisk together the egg yolks, vanilla extract, xylitol and salt until thoroughly combined. 
  • In a separate bowl, sift together the coconut flour, vanilla protein powder and baking powder.
  • Add the cream of tartar to the egg whites and using beaters or a stand mix, whisk the egg whites to stiff peaks. 
  • Add the sifted dry ingredients to the egg yolks and whisk until smooth. Add the melted butter and mix to incorporate evenly. 
  • Fold in the beaten egg whites, a quarter of the whites at a time. Fold as gently as you can to preserve the air and create a fluffy sponge.
  • Gently spoon the mixture in to the prepared cake tin and bake for 25 - 30 minutes until a skewer inserted into the centre comes out clean. Remove and allow to cool on a wire wrack. 
  • Meanwhile, make the strawberry chia seed jam using the link above. 
  • Once the cake is cooled, cut in half horizontally and then into rectangles. Spread the jam between each rectangle and sandwich together. 

Icing and Assembly

  • In a shallow bowl, sift together the xylitol and cocoa. Add the butter and boiling water and stir to create a smooth paste. 
  • On a separate plate, spread out the dessicated coconut. Roll each rectangle of sponge in icing and then in coconut, ensuring the coconut is thoroughly covering the icing.  
  • Keep refrigerated and enjoy! 


Calories: 121kcalCarbohydrates: 5gProtein: 5gFat: 9gSaturated Fat: 6gCholesterol: 103mgSodium: 83mgPotassium: 138mgFiber: 2gSugar: 1gVitamin A: 225IUVitamin C: 5.5mgCalcium: 45mgIron: 0.9mg
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