I liked Mark Bittman's miso-red wine sauce so much that I decided to retool it a bit. Rather than using red miso and red wine to make a sauce for pork, I substituted white miso (or shiro miso) and sherry to make a sauce for chicken thighs and mushrooms.
Brown a half-pound of chicken thighs in a hot skillet, then add sliced button mushrooms. Saute until chicken turns white and mostly cooks through, then add a cup of cream sherry (I used Hartley and Gibson's cream sherry) and two tablespoons of white miso (it helps if you smash up the miso some before adding it, so it will dissolve faster). Cook the sauce down by at least half, then turn out onto a plate of pasta.
This was a decadent dish. I've cooked with marsala quite a bit, but I can't remember trying a real sweet sherry sauce. This one delivered the goods, so much so that it induced a post-dinner coma. The mushrooms soaked up the sweet sauce, and were intensely flavored as a result. The dark meat of the chicken thighs stood up to the strength of the sherry flavor better than a milder cut like chicken breast would have done. When I try this again, I'll probably serve it over a flavored pasta like spinach fettuccini in order to add another taste element (this time I used wide egg noodles). If I really want to quibble, I would say that a well-chosen herb and some lemon juice would also add a bit of zing to the sauce, but even without that zing, the sauce was excellent. A keeper.