Cut cucumber, red onion and chives, and add to a bowl along with creme fraiche. Mix well and season to taste with salt, pepper and lemon juice.
3
When the potatoes are fully cooked, you can transfer them to a baking tray lined with baking paper. Use a wide glass of water to "smash" the potatoes. Top with a dab of butter (or olive oil), and garlic. Place the trout fillet next to the potatoes, and bake together in the oven at 200 degrees for about 10-15 minutes.
4
Serve the trout fillet with smash potatoes and cucumber salad.
