From the old country, naturally. The Boston Globe has the details in a succulently illustrated article that you can find here:

The English food company Aunt Bessieโ€™s has invented an unusual way to keep the popular pub specialty โ€œbangers and mashโ€ (sausages and mashed potatoes) in one tight parcel. Their solution is the โ€œmash cone.โ€ The Metro in England ran [a] photo under the headline, โ€œWorld most disgusting ice cream,โ€ with the caption, โ€œhorrible, horrible, horrible, horrible, horrible, horrible, horrible, horrible.โ€ Well Aunt Bessieโ€™s was understandably upset. So the company delivered mash cones to the offices of The Metro, where the staff felt obligated to eat them and really say what they thought. Hereโ€™s the review: โ€œMetro is happy to report that that the mash has โ€˜good textureโ€™, the sausage is โ€˜pretty tastyโ€™ and the gravy โ€˜actually quite niceโ€™. Unfortunately, the makers have had to backtrack on the actual cone element of the product, as the cones were disintegrating. However, they said theyโ€™d give serious consideration to our suggestion that they should make the cones out of Yorkshire pudding. Some further suggestions: the mash is perhaps a little bland โ€“ it could use a bit of gentle spicing up. Also, it would be awesome if you could get a kind of โ€˜gravy rippleโ€™ effect running throughout the mash, rather than just as a sauce on top.

Eat your heart out, Alain Ducasse.