1. Grease the ramekins. Set aside.
2. Place the shallots, lemon zest, and coriander seeds in the bowl of the Thermomix. Mix for 5 seconds / Speed 5.
3. Add the salmon, cream, eggs, and 4 turns of the pepper mill. Mix for 20 seconds / Speed 8, gradually increasing the speed.
Divide half of the mousse among the 4 ramekins, place a scallop without the coral on each one, and cover with the remaining mousse.
Cover each ramekin with heat-resistant plastic wrap and place them in the Varoma.
4. Pour water and fish stock into the bowl, place the Varoma on top, and cook for 25 minutes / Varoma / Speed 2.
At the end of cooking, let cool for 15 minutes before serving.
5. For the sauce:
Empty the bowl, making sure to keep 100g of cooking broth. Add flour, basil, lemon juice, cream, salt, and pepper to the bowl and program for 7 minutes / 90°C / Speed 3.
When the timer goes off, mix for 20 seconds / Speed 10 to obtain a smooth sauce.