How to make the 'Batanga'

In preparation for Cinco de Mayo, try the Batanga! (Video Steven Tonthat, Music  ... ) _______ - 1/2 lime - Sea salt (preferably fleur de sel) - 1/2 ounce lime juice - 2 ounces 100 percent blue agave blanco tequila (such as Don Julio Blanco) Run