An hour before using, take the salmon fillets outside the refrigerator and allow to come to room temperature.
Preheat the oven to the 210°C, air circulation, rack in the middle.
We start with the Pui lentils by placing a medium pot on high heat. We add the Bouillon broth, lentils, rosemary, the peel and juice of the orange and 1 tsp of salt. Bring to a boil, stir and simmer for 45 minutes until the lentils are cooked, not to soft not too crunchy! 10 minutes before the end add the shredded carrots and the balsamic vinegar and give it a stir. Let cool and mix with cucumber and 1 tbsp of the fresh thyme. Keep aside.
In the meantime, take a small oven-proof rectangular dish and grease it with some butter. Pat dry your salmon fillets and place them in the oven dish skin side down.
Take a glass bowl and add the turmeric, the remaining 1 tbsp of thyme and remaining ½ tsp of salt. Mix well and sprinkle on top of the salmon fillets. Pour the lemon juice over them, add the lemon zest and while using a cheese grater box grate the butter on top of the salmons. Cover the dish with foil and cook for total 20 minutes. 5 minutes before the end uncover and continue cooking.
Remove from the oven, serve in a plate where the Pui lentils are placed, scoop all over the butter sauce and garnish with the optional micro leaves. Optionally drizzle some basil oil around the lentils.