Named ‘Braveheart Butterbombs’, the dessert is made from frozen balls of butter, given an unmistakably Scottish flavour with the addition of Irn Bru batter.

A variation with whisky batter is also available, just in case you don’t feel as though there’s enough flavour going on.

Creator Simon Robertson, head chef at The Fiddler’s Elbow in Edinburgh, told The Telegraph newspaper: “We thought we’d add a bit of fun to our menu of Scottish dishes and it’s really got people talking.”

Of the potential for diners to die from a calorie-overdose on the spot, he said: “Some folk are saying it’s a heart attack on a plate and, okay, it’s not exactly health food but as long as you’re not having it every day it shouldn’t be any problem.”

The dish is a co-invention with Paul Fitchie, a former chef with Harvey Nichols.

Nutritionists estimate the calorie content to be around 1450, according to The Telegraph – a sizeable chunk of the recommended daily calorie count of 2500 for men and 2000 for women.

Oliver Scott, who owns The Fiddler’s Elbow, told the broadsheet: “We’ve been trying it out on volunteers who are loving it. It actually tastes lighter than you’d expect, it’s a bit like eating a banana fritter but nicer and obviously a bit naughtier.”

He added: “It might not be too nutritious but it’s definitely delicious.”