Lightly poached leeks get dressed in a mustardy vinaigrette chock full of minced shallot in this classic french dish that doesn't get nearly enough play in the u. S. It's elegant, delicious, and can be made before the guests get anywhere near the doorbell. That's why i love to make this as a first course for dinner partiesit can be all ready to go hours ahead of time. These leeks work well with chicken and fish dishes of all sorts, but if you follow french tradition and serve them as a separate first course, they go with pretty much anything I've been known to serve them more as a salad with great success, so don't feel constrained by tradition.