On the Rocks Margarita

Description
Margarita from the Wikibooks Bartending Guide—original source of recipe, licensed under the GNU Free Documentation License
 * Serves: 1

Ingredients

 * 2 oz tequila
 * 1 oz orange-flavored liqueur (Cointreau or triple sec)
 * 1 oz fresh lime juice
 * Ice cubes
 * Salt for garnish

Directions

 * 1) Moisten rim of glass with lime.
 * 2) Rotate rim against coarse salt, to salt the outside but not the inside of the rim.
 * 3) Fill the glass with ice cubes.
 * 4) Combine ingredients in an ice-filled shaker.
 * 5) Shake until cold.
 * 6) Pour contents of shaker into glass.
 * 7) Garnish with slice or wedge of lime.