Craterellus cornucopioides has also been called Black Trumpet and Black Chanterelle, and I have only seen it once in a restaurant where they were passing it off as black truffle by sauteing slices, then using them to top angel hair pasta and drizzling truffle oil (which is not a truffle product but does mimic the flavour) on top.
A friend recently bestowed some of these on me and I simply sauteed them in butter with a hint of fresh thyme and served them heaped on toast. Delicious, like a more concentrated chanterelle, albeit with less apricot flavour. Too bad we rarely see them and if they do appear they tend to be quite expensive.