Heat oven to 400 degrees F and arrange a rack in the middle.
Place pears cut side down in a 3-quart baking dish. Drizzle pears with honey, water, dot with butter, and add brandy, cinnamon stick and cloves.
Roast pears, basting every 5 to 10 minutes, until pears are knife tender in the thickest part and sauce is slightly syrupy, about 35 to 45 minutes. Serve with whipped cream or ice cream and spoon roasting juices over the top.