Wash, dry and cut the salmon into chunks.
On one side, make the orange citronette dressing, add the chopped thyme and leave the fish to macerate for about 1 hour.
Meanwhile, in two separate bowls, mix equal parts of breadcrumbs and sesame in one bowl and of breadcrumbs and hazelnuts in the other.
Remove the salmon from the liquid and roll alternate chunks in the crunch: one with sesame and one in hazelnut and so on.
Then place the fish into a baking dish drizzled with olive oil.
Bake at 200°C for about 20 minutes, making sure to turn the chunks over halfway through.