I'm new here, but figured I might as well add one of my new favorites.
Corpse Reviver #2 (Lonely Raven version)
1 oz. gin (I prefer North Shore Gin made here in Chicago)
1 oz. Cointreau (NOT TRIPLE SEC!)
1 oz. Lillet Blanc (also used in the original James Bond drink from Casino Royal)
1/2 oz. fresh lemon juice
1/2 absinthe (Again, North Shore makes a great Absinthe)
Ice cubes
Tools: shaker, strainer
Glass: cocktail
Garnish: orange peel
Shake all ingredients in a shaker, strain into a chilled glass and garnish.
My version differs from the original in that I cut the lemon juice down to 1/2 oz, and increase the Absinthe from a dash, to 1/2 oz. It needs to be a good Absinthe though, otherwise it overpowers the drink.