1
Par boil the potatoes, before slicing and frying off in a single layer in a pan over a medium heat with the butter and some seasoning. Allow to fry for 5-6 minutes until golden brown on both sides.
2
As the potatoes are frying, make the dressing, whisk together the horseradish with the crème fraîche and lemon juice. Add plenty of seasoning and a small amount of the dill.
3
Put the onion into a bowl with some seasoning and juice of half the lemon and set side to lightly pickle
4
Using a mandolin, thinly slice the radish & cucumber.
5
Flake the trout and assemble on a plate with the potatoes and veg. Add another squeeze of lemon juice, dollop the dressing over the salad, add in the trout caviar and serve.