Thursday 8 September 2016

Irn Bru Brownies

brownie mix made with irn bru drink

I hadn’t baked with Irn Bru for a while. I love using it in some of my recipes as it has such a unique sweet, ferric taste! There truly is a wee bit of ammonium ferric citrate in Irn Bru, so you can be rest assured that it’s name matches what’s inside (a little bit).

I’ve made Irn Bru macarons in the past and Irn Bru cupcakes. What else could I use it in? How about pairing it with chocolate in some decadent fudgy brownies? The rich taste of the chocolate would work well with the sweetness of the favourite Scottish soda!

To make things even easier, I used a box of brownie mix by Mrs Crocker. You could use this, or any other boxed brownie mix you come across. I used sugar free Irn Bru in my recipe and it didn’t take anything away from the taste.

brownie mix made with irn bru drink

(If you are using a different brand use more or less Irn Bru depending on the weight. 400grams brownie mix approx. = 100ml Irn Bru as a rule of thumb.)

The box asks for eggs, oil and water. I only used the oil, which would lend to the gooeyness of the brownies and subbed the eggs and water for the Irn Bru. I beat the brownies in my Sage Scraper Mixer Pro and they were ready to bake in no time.

brownie mix made with irn bru drink

The baked brownies weren’t as puffed as I thought they might be, but instead they were dense, fudgy, and chewy which is exactly how I like my brownies. The Irn Bru taste was definitely there, but I wanted to take it to another level.

brownie mix made with irn bru drink

This part is entirely optional, but I added an Irn Bru flavoured buttercream on top. I had some Irn Bru flavouring I had purchased online a while back and added this to my buttercream along with orange and blue food colouring, swirling it on top of the brownies. This made for a very naughty treat, but one that tasted very, very good.

Brownies made in Scotland from girders! Here’s how I made them…

print recipe

Irn Bru Brownies
Brownies made with Irn Bru - simple as!
  • one box brownie mix
  • 100 ml Irn Bru (diet or regular)
  • 2 tablespoons vegetable oil
  • 55 grams unsalted butter
  • 1/2 teaspoon iron brew flavouring
  • 115 grams icing sugar
  • 2 tablespoons Irn Bru (diet or regular)
  • orange and blue food colouring
Pre-heat the oven to 180C (160C fan) and line a 9”x9” brownie pan with greaseproof paper.In a mixer, add the brownie mix, 100 ml of Irn Bru and the vegetable oil.Beat for at least one minute until the mixture is smooth.Transfer the mix to the brownie pan and smooth over with a knife.Bake in the oven for 20 to 25 minutes or until a toothpick comes out almost clean and the top is slightly cracked.Allow to cool fully.In the mixer beat the butter, icing sugar, Iron Brew flavouring and two tablespoons of Irn Brew until smooth.Divide the buttercream into two and colour one half pale orange, the other pale blue.Dollop on top of the cooled brownies and with a knife swirl.Refrigerate until ready to enjoy. Slice into squares with a knife.Enjoy!
Prep time: Cook time: Total time: Yield: 16 brownies approx.

brownie mix made with irn bru drink

This is my entry for this month's Treat Petite hosted by Kat at The Baking Explorer. The theme is there is no theme!!

Disclosure Statement: I received the Scraper Mixer Pro from Sage for free to review. Any opinions expressed are my own.


  1. For me a box brownie was always a camera, I've never tried Betty Crocker - it doesn't help that I'm more Betty Ford of course... I am a secret Irn Bru lover though. Love the colour, and it works well on these!

  2. Stuart these look amazing! I love irn bru and I love brownies so I would love to try them combined. A fantastic entry for #TreatPetite

  3. Irn Bru is so uniquely Scottish..... somehow it never tastes quite the same when drunk on the English side of the border, even if it comes out of the same can! Interesting addition to brownies!

  4. looks like great fun - I think I have only had irn bru in tablet which I loved but never thought to bake with it - now I am sold and need to see if I can buy any locally and then manage to stop my family drinking it.

  5. I haven't had Irn Bru in ages & have forgotten what it tastes like. I bet my kids would love these, as they look very sweet.


Thanks for leaving your comments. I love your feedback and really do appreciate it.

Note: only a member of this blog may post a comment.