In a 3-2-1 ratio

  * 3 shots Tequila, Silver, 100% Agave
  * 2 shots Lime juice, fresh-squeezed
  * 1 shot Triple Sec, or other orange liqueur: Cointreau, Curacao, Grand Marnier

Add to ice cubes in a water bottle.

Shake for 30 seconds.

Pour into glasses (makes two).