Mix ingredients for chili salt. Rim two cups with prepared chili salt.
In a small saucepan, combine all the ingredients for the syrup. Bring the mixture to a boil. Stir until sugar dissolves. Remove from heat and allow the syrup to cool. Strain syrup and set aside.
Mix mango and water and puree in a blender.
Add ice to cups. Place all the ingredients of the margarita in a shaker, add ice. Shake the drink. Pour over prepared glasses.