RECIPE: Bourbon Biscuits with a Spiced Rum filling. The GBBO Gluten Free Bake Along (Signature challenge, week 2)

So The Great British Bake Off is here, and has graced our screens on a different channel, with different hosts who I am LOVING, by the way. And yet again, my other half will only watch it with me, under the condition that I bake something from the show.

I was planning on making the technical challenge every week, but as we all know, when recipes call for wheat flour, you can’t just substitute it for gluten free flour. In the first week, however, the technical was gluten free, and I got a bit TOO happy with making the mini rolls, that I rolled a giant one, and ate half of the actual mini rolls that I should have been photographing. Oops. They were certainly a hit for everyone who tried it!

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Only this could happen to me!! So I'm baking with #gbbo and was super excited to make the mini rolls from the technical challenge. I got too excited rolling one sponge that I got carried away and made a giant chocolate log 😂😂 I then got stressed and I ate the the other half of the second batch which I rolled correctly, they came out okay-ish. Don't have time to make another set before next week's episode, so I'm taking this with me to work 😂😂😂 if I was on the show, I'm sure there would be a innuendo about a big chocolate log. If you guys are baking gluten free with the bake off, don't forget to tag me in your wonderful bakes and I will repost them 💕💕

A post shared by Georgina | The Coeliac Sloth (@theglutenfreesloth) on

This week was biscuit week, and the technical challenge was to make almond and orange fortune cookies! I tried, but unfortunately, it’s super difficult to make the recipe gluten free. Well for me it was anyway. So instead, I made something from the signature challenge, which was sandwich biscuits! My favourite gluten free sandwich biscuit is the bourbon biscuit (though some may argue it’s custard creams). I also frigging love rum. Rum and chocolate, to me, make the perfect marriage of flavours.


My favourite rum of all time, if you didn’t see my Rum & Chocolate Cheesecake Brownie Recipe already, is Sailor Jerry spiced Caribbean rum. I think the spices in there bring out the chocolatey-ness in this recipe. If I’m honest, it makes the frosting SUPER chocolatey and rich.

Chocolate Bourbon Biscuits (GF, DF, EF, VEGAN)

  • Servings: 18-24
  • Difficulty: Medium
  • Print

Gluten free chocolate sandwich biscuits, filled with an indulgent Sailor Jerry chocolate frosting .



    For the Sandwich Biscuits
  • 250g Doves Farm Self-raising flour
  • 1 Tsp Apple Cider Vinegar
  • 40g Cocoa Powder
  • 60g Cornflour
  • 1tsp Xanthan gum
  • 4tbsp Agave Syrup
  • 170g Pure Soya Spread

    For the Sailor Jerry Chocolate buttercream
  • 6 Tbsp Cocoa Powder
  • 1/2 Cup Pure Soya Spread
  • 2 1/2 Cups Icing Sugar
  • 2 Tbsp Sailor Jerry Caribbean Rum


    1. Preheat the oven to 180°c
    2. Mix all of the dry ingredients for the sandwich biscuits together in a bowl.
    3. Add in the Pure Soya Spread and Agave Syrup, and crumble together with your hands, so everything is thoroughly incorporated. When everything is mixed together, roll into a ball of dough and refrigerate for 20 minutes.
    4. On a floured Surface, roll out the biscuit dough to approximately 5mm thick, and cut out small circles.
    5. Transfer the dough circles onto a lined biscuit tray and bake for 10-12 minutes. Leave to cool once they are baked.
    6. For the frosting, beat the soya spread until softened, and then beat in the Rum.
    7. Slowly beat in the cooca powder, and icing sugar. Beat until smooth.
    8. Transfer the frosting into a piping bag, fitted with a star nozzle.
    9. Once the biscuits are cooled, put half of them to one side. Pipe the frosting in circles on the other half of biscuits, starting from the centre.
    10. Top the frosted biscuits with the unfrosted ones, to create your sandwich biscuits.
    11. Sprinkle with icing sugar.
    12. Enjoy this boozy indulgent treat!

What I love about this is how comforting it tastes. You can substitute the rum for Dairy Free milk if you’re after an alcohol free version, too. So, this is my take on a classic sandwich biscuit, which sandwich biscuits do you love? If you’re following me on Instagram and baking along, TAG ME IN YOUR BAKES and use the hashtag #GBBOGlutenFreeBakeAlong because I would LOVE to see your creations.

Thanks for reading!

Georgina x

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