When the doughnuts are ready and the oil is hot, carefully add the doughnuts to the oil, a few at a time without overcrowding your deep-fryer or pot. If the doughnut sinks to the bottom, your dough is under-proved and you need to wait a little longer. It's safe to say Irn-Bru are at their best when they are poking fun at Scots themselves and in particular, with this ad, our rivalry with the English. Cut squares of parchment paper for the doughnuts to rise on. This makes everything so much easier when it comes time to individually dropping them in the oil.

IRI data reported that Irn-Bru Xtra delivers a 12% increase in sales value over the summer months in particular and is currently outperforming across the low-calorie carbonate market. Carbonated Water, Acid (Citric Acid), Flavourings, Sweeteners (Acesulfame K, Sucralose), Acidity Regulator (Trisodium Citrate), Preservative (Sodium Benzoate), Colour (Brilliant Blue) It is far from what you’d expect from a can of Irn-Bru and much more like another of A.G. Barr’s fizzy products Cream Soda. The glaze will slowly drip off the doughnuts as it sets. Repeat with remaining doughnuts. Irn-Bru cupcakesAdrian Troy, marketing director at A.G. Barr, said: “The Scottish summer is one of life’s true luxuries - you wait all year for it to arrive and it’s gone before you know it. However, it manages to retain the flavour that makes Irn-Bru a stalwart of the soft drinks industry and wider Scottish culture while introducing a pineapple twist which blends surprisingly well.

Sift the icing sugar into a large bowl, add the butter and mix on a slow-medium speed with a clean tea towel over your mixer to prevent your kitchen filling with icing sugar! Using an ice cream scoop, fill your cupcake cases 2/3 full and bake for around 20 minutes until a skewer comes out the cupcakes clean. Cover the bowl with a large kitchen towel, and leave it in a warm place to let it rise until it doubles in size, about 1 hour.A third added: "Ok I'm sold! Especially Tropical! Now if you fancy sending me a can or two to try..."