Carabinero or Scarlet Prawns are considered amongst the very finest in Spain and are highly prized by locals. (Along with a separate variety, the Gamba Roja which includes the famous Palamós Prawns which we had recently at Asador Etxebarri).
They're so called because they match the uniforms of Spanish customs police. I've spotted carabineros on menus such as at London's Barrafina but I've never seen them in Manchester. Why is that? Well they're pretty rare over here. By all accounts, London restaurants hoover any up and also they cost more because they're so coveted. They are prohibitively expensive for Manchester restaurants where there will be little demand anyway.
I gave the challenge to my local and brilliant fishmonger Out of the Blue. Within a few weeks they'd arrived. I'm not sure why I rushed in to get them, no local restaurants will touch them as anticipated. (Meanwhile the likes of nearby Croma sell a few tiny, tasteless, Iceland style prawns for about £6).
We buy a couple of disposable BBQ's and invite a couple of friends over. They go on the hot BBQ for four minutes each side, timed to the second. (Give or take for size).
If you want the best you have to pay more for it but this is currently the only way to get this fantastic produce (that I know of) in Manchester and even then supply is limited. Get 'em while you can.
A dozen Carabineros cost me £50.