Welcome to Whisk Wednesdays! I've joined Shari of Whisk: a food blog and a bunch of other intrepid bloggers in the weekly adventure of working our way through a classical cooking curriculum from Le Cordon Bleu at Home.
This week's lesson was to prepare Billy Bi, a soup made with mussels, onions, wine, cream and seasonings. Though there are several stories of the soup's origin, the most popular is that Maxim's chef Louis Barthe named it after a regular patron who particularly loved the soup, American tin tycoon William B. (Billy B.) Leeds.
As I made this soup I found myself wondering if it's a bisque or a velouté-based soup. The nice thing about cooking along with a group is that you can send out an email with these sorts of questions. Shari came up with a great response:
"Is it a bechamel or a velouté base? Béchamel is similar to velouté, but the liquid that's added is milk not stock. This soup has both stock and cream with a roux. I would say that it starts with a velouté since that's the order the ingredients are worked in..."
Billy Bi is surprisingly easy to make, given its rich and complex flavor. The ingredients list is short and sweet, consisting of butter, shallots, celery, white wine, water, mussels, black pepper, heavy cream and chives. The recipe did not call for any salt, but I added a pinch when I tasted it before serving. Preparing the soup was a breeze and consisted of these three basic steps:
1) Make the initial broth by cooking the shallots in a little butter before adding water, wine and some celery... and then steam mussels (in their shells) in the broth. Collect the cooked mussels and set aside. Strain the broth to remove any sand, as well as the shallots and celery.
2) Shell the mussels and divide them into two portions. Put the strained broth back in the pot along with half of the mussels and cook until reduced by about a third. Strain the broth a second time, mashing up the mussels to extract all of their briny goodness, and then discard the poor dear things (kitchen culture can be so brutal).
3) Make a roux, and whisk in the strained broth. Let it simmer for a bit to develop it's full mussel-y flavor, and then add heavy cream and the remaining mussels. Sprinkle with chives.
Simple, right? The recipe called for a new pot with each step, a concept I
immediately rejected. I found it simpler to just strain the broth into a bowl set aside for that purpose and then to re-use the same pot I'd started with. Even so, I had a shocking amount of washing up to do later.
Were all those dishes worth it? Decidedly so! I would never have tried making this soup if it hadn't been assigned to me and I'd have missed out on a really wonderful experience. Billy Bi tastes like pure essence of mussels, or perhaps like mussels in their Platonic ideal form. Indeed, Jack paid me the highest compliment, remarking, "This is of restaurant quality, and I don't mean just any restaurant, I mean a good restaurant."
Next Week: Julienne Darblay (Creamed Leek and Potato Soup with Julienned Vegetables) page 133-134