The IRN-BRU Float: A Scottish Twist on a Classic Ice Cream Treat
, 3 min reading time
Explore the history of IRN-BRU floats and learn how to make this nostalgic Scottish ice cream treat.
There's nothing quite like a cold glass of IRN-BRU, but add vanilla ice cream and you've got a wonderfully nostalgic Scottish treat: the IRN-BRU float.
What is an IRN-BRU float?
It's a Scottish take on the classic ice cream soda. Pour chilled IRN-BRU over vanilla ice cream and watch the fizzy drink turn into a creamy, foamy dessert.
From old-fashioned sweet shops to modern dessert counters, a float is part drink and part pudding. The creamy ice cream softens the fizz, while the soda brings a refreshing contrast. It's easy to see why the combination has lasted for generations.
The history of the ice cream float
Ice cream floats date back to nineteenth-century America. One popular origin story credits Robert McCay Green with serving an ice cream soda at a Philadelphia exhibition in 1874. Over time, people began making floats with different soft drinks. The IRN-BRU version is a Scottish twist, not a drink known to have originated in Scotland.
The earliest ice cream sodas were served at soda fountains, where people gathered for a special treat. The idea of combining a cold fizzy drink with ice cream travelled widely, inspiring versions made with cola, root beer and fruit-flavoured sodas. There's no need for complicated equipment: just a glass, a spoon and a little patience while the foam settles.
The story of IRN-BRU
Barr's Iron Brew was introduced in 1901. The distinctive orange drink became a Scottish favourite and later adopted the familiar IRN-BRU name. Its bold flavour makes it a fun alternative to the cola and root beer traditionally used in ice cream floats.
IRN-BRU's connection with Scottish identity makes it a natural choice for a local take on the float. The familiar orange colour also makes the finished dessert particularly striking. For a nostalgic afternoon, pair it with Tunnock's Teacakes, caramel wafers or a piece of Scottish shortbread.
How to make an IRN-BRU float
You'll need: around 200–250ml chilled IRN-BRU, two scoops of vanilla ice cream, a tall glass and a long spoon. Quantities can be adjusted to suit the size of your glass.
- Chill a tall glass and your IRN-BRU.
- Place two scoops of vanilla ice cream in the glass.
- Slowly pour over the IRN-BRU, allowing space for the foam.
- Serve straight away with a straw and long spoon.
Try it alongside Scottish shortbread, chocolate teacakes or your favourite sweet treats.
Three ideas for serving your float
Keep it classic: vanilla ice cream and chilled IRN-BRU are all you need. Make it a party treat: use smaller glasses so everyone can try one alongside a plate of Scottish biscuits. Build a dessert board: set out shortbread, teacakes, fudge and caramel wafers for guests to enjoy with their floats.
Pour slowly: the fizz can rise dramatically when it hits the ice cream. Add the drink in stages rather than filling the glass all at once.
Bring a wee bit of Scotland home
Our new hamper photography celebrates that playful combination of IRN-BRU and Scottish sweet treats. For a gift packed with Scottish character, explore The Wee Yin Scottish Sweet Treats Box or discover more Scottish sweet hampers.
Frequently asked questions
What is an IRN-BRU float?
A dessert drink combining fizzy IRN-BRU and ice cream.
Is the ice cream float Scottish?
No. The classic float has American origins, but IRN-BRU makes a distinctly Scottish variation.
What ice cream is best?
Classic vanilla ice cream works particularly well.
Why does it foam?
Carbon dioxide bubbles escape as the fizzy drink meets the ice cream.
Can you prepare it ahead?
It's best served immediately while fizzy and cold.