This is a pretty interesting and complete cocktail. Apparently, it's a spin on a classic Gin cocktail. Here's the recipe:
-1.5 ounces blanco tequila
-1 ounce green Chartreuse (a French cordial)
-1 ounce Maraschino Originale from Luxardo (an Italian cherry liqueur)
-1 ounce fresh squeezed lime juice
Btw, check out the Taste Tequila site for more!