What is in a Manhattan Drink?

The recipe for a Manhattan is: 3/4 oz of sweet vermouth, 2 1/2 oz of bourbon whiskey, 1dash of bitters, 1 maraschino cherry, 1 twist orange peel. Combine all ingredients except the cherry and orange peel in a mixing glass plus ice, stir gently. Mash the cherry and orange peel at the bottom of glass and pour mixture over the fruit. Enjoy!