Bad pun: This cured fish is so ill! HAHAHHAHAHHAHAHHAHA (repeat x 1,000,000)(ed: no fucking way am I going to do that)
I used flathead. It tasted good. I also tried with another fish (gemfish?) and it wasn't as good. Salmon would go well. I think perch would too.
I covered approx 300g of flathead fillets with the juice of an orange, the zest of an orange, the juice of a lemon, the zest of a lemon, a tablespoon of capers, a few sprigs of thyme, a handful of roughly chopped dill, a bit of black pepper, a shot of gin (o hai Hendrick's) and a handful of salt. I made sure the whole fish was covered, wrapped it up VERY well, put it on a plate and left it fridgeally for 3 days.
After 3 days the outside of the fish was white. It looked "cooked". I sliced it thinly and put it on a plate. I gave that a very good drizzle of olive oil, the juice of half a lemon, a pinch of salt, a little pepper and a little bit of fresh thyme.
Eaten with slightly warm bread it was amazing.