1.5 ounces (45 ml) Tequila
3/4 ounce (22 ml) Cointreau
3/4 ounce (22 ml) fresh Lime or Lemon Juice
Shake well and strain into a cocktail glass.
As simple and tasty as this is, you may want to make two. A Picador is one of a pair after-all, (a "Picador" is one of the two horsemen that spear the bull in a Spanish bullfight with a lance.).
Can't decide between lemon or lime? Try one of each!