Preheat your oven to 200 C / 400 F with the rack in the center.
In a small bowl combine olive oil, fish seasoning, ginger and lemon juice ( from squeezed lemon slices). Pour the mixture over the trout steaks, coat evenly. Allow to marinate 10 minutes.
Transfer the marinated trout steaks with lemon slices into a large oven-safe skillet and bake 9-10 minutes.
In the meanwhile, use a rubber spatula & blend together the melted butter & flour in a large pan over medium heat.
Pour the boiling vegetable stock and whisk with a wire whip.
Add the egg yolks & heavy cream. Bring to boil. Season with the black pepper and lemon juice. Beat in 1 tbs of the melted butter.
Remove the baked trout from the oven and pour the sauce immediately. Sprinkle cayenne pepper & garnish with parsley chiffonade.
Happy Healthy Eating!