Thanks for the informative replies. I agree GB, raw is the best way to eat salmon, but this one was definately cooked or cured
somehow. I got into the restaurants web site and the dish is actually called "42 degree vodka cured trout
". I assume 42 degrees means celcius as this is an Aussie restaurant. Bang on the mark with an "acid curing" Michael. I like your idea of stacking layers of fish too, I couldn't figure out how they'd presented the dish. I googled some more and came up with a similar dish called "Absolut Vodka Cured
Salmon" it's at www.fooddownunder.com
if anyone is interested.