Preheat oven to 350°F. Combine sugar and water in a heavy saucepan over medium heat. Simmer 8-10 minutes until mixture begins to thicken slightly. Place pears, cut side down, in a buttered shallow baking dish. Pour sugar mixture over pears and bake 10 minutes. Turn pears and bake another 10 minutes, basting occasionally. Serve pears warm with chocolate topping.
