I like to serve oysters on special occasions.This bisque is based on a recipe from Sarah Leah Chase's cookbook, COLD WEATHER COOKING. It begins by first making your base by sauteing onion and celery in butter, adding rehydrated wild mushrooms, then seasoning with thyme and nutmeg, making a rue with some flour, then stirring in your juices from the rehydrated wild mushrooms, oyster liquor, fish stock, and sherry. While the soup base simmers, prepare wild rice, and saute your fresh mushrooms. This is where you can really be creative with different types of mushrooms, like my fave, Hen of the Woods, AKA Maitake, which adds an intense earthiness and an interesting texture. Once the soup base has simmered, add in your light cream and blend with an immersion blender. Add in your sauteed mushrooms, wild rice, and oysters.The base and the wild rice can be made ahead. The original recipe uses heavy cream and cream sherry. Makes a lovely first course for a holiday dinner.