This classic cocktail is made with four cans of Mule Old Fashioned. The ingredients are:- 4 cans of Mule Old Fashioned- 2 ounces of whiskey- 2 ounces of simple syrup- 2 dashes of Angostura bitters- 2 dashes of orange bitters- Orange peel for garnishInstructions:1. In a shaker, combine the whiskey, simple syrup, Angostura bitters, and orange bitters.2. Fill the shaker with ice and shake vigorously for 30 seconds.3. Strain the mixture into four rocks glasses filled with ice.4. Top each glass with one can of Mule Old Fashioned.