Salmon with Lemon Butter Sauce (鮭のレモンバターソース）

This recipe is inspired by Jacque Pepin & Julia Child show.
Salmon is just boiled in water and white wine which I substituted with Sake.
Then make a quick sauce and put on it.

How to make:
1: Boil Salmon with boiling water and sake. You can add some herb to it.
2: Keep salmon on serving plate, and clean up the water which is used to boil salmon with a strainer. Just try as much as you can.
3: In a sauce pan, melt butter and add lemon juice. When it's mixed up well, add flour and whisk. Reduce the mixture with the water from 2, and complete the taste with salt and pepper.
4: Put sauce on salmon. Potato goes well with the sauce as well.