The white crab meat in this recipe is caught and hand picked in Cornwall, the potatoes are from our garden and the marsh samphire, which is in season at the moment, I got from the fish counter at the supermarket.
The first thing I did was to thinly slice the potatoes into crisps, using a mandolin because it's my new "toy", it probably would have been fine just to do it with a sharp knife though!
These crisps/chips are shallow fried in enough light olive oil that you can see it bubble when it's hot, it takes a few minutes on each side to cook them. We did them in batches and laid them out on recycled kitchen paper to absorb the grease, before popping them in a very low oven to keep warm.
For the sauce, heat up some oil and butter in a saucepan and add several sliced spring onions (or any onion) and a crushed garlic clove. Cook until soft, then pour in half a glass of white wine, salt and pepper, and let that bubble away gently to cook out the alcohol. Add around 100ml of vegetable stock and keep on a low heat while you cook the fish and vegetables.
Put a handful of beans into boiling water and put the samphire on greaseproof paper in a steamer on top of the saucepan. Both vegetables should cook through in the time it takes to prepare the fish.
Using the same frying pan as for the potatoes, reheat the oil and add a little butter. Lightly season the fish and place it in the pan when the oil is very hot. Leave it, without moving or pressing on it, for a good few minutes until the sides of the fish are starting to go opaque. Flip them over and cook for a final minute or two before plating up.
The potato crisps can be layered up to make a little tower, with the beans on top and the samphire to one side. At this point, stir some sliced sorrel into the sauce and remove the pan from the heat, then stir in the crabmeat as well and spoon over the fish.