The Coach House Restaurant on Waverly Place in New York City was legendary. It was owned by a Greek, the beloved Leon Lianides, and dedicated to serving classic American food in an era when fine dining spoke French. After suffering ups and downs in its later years, it closed for good in 1993, and Mr. Lianides died in 1998. But there are plenty of New Yorkers who still grow misty-eyed at the thought of the Coach House corn sticks, the black bean soup with Madeira and -- sweetest memory of all -- the mocha dacquoise. I had acquired the black bean soup recipe back in the early 80's, and decided to post it here for posterity, and for those who might remember it fondly. Beware, though, that there is nothing quick about making this soup.