, stems discarded and thinly sliced
dry vermouth or
COOK pasta in a pot of boiling water following package directions, but omitting salt, until tender, about 10 min. Reserve 1/4 cup cooking water before draining the pasta.
HEAT a large non-stick frying pan over medium. Add bacon. Cook until just crisp, 4 to 5 min. Transfer bacon to a plate.
ADD onion to pan. Cook until onion is almost soft, 3 to 4 min. Add mushrooms. Cook until mushrooms are tender, 2 to 3 min. Pour in vermouth and cook until it almost evaporates, 1 min. Stir in broth, cream, salt and reserved pasta water. Boil until sauce is slightly thickened, about 3 min. Stir in pasta and bacon. Sprinkle with chives.