Add .25 ounce of the Mint Syrup to each of two chilled cocktail glasses and set aside.
Add the rum, lime juice and ice to a blender and blend until a uniform frappé consistency.
Divide the mixture evenly between the two glasses and top each with an additional .25 ounce of the Mint Syrup.
Garnish each glass with a mint sprig.
*Mint Syrup INGREDIENTS:
1 cup Fresh mint leaves, tightly packed
3 oz Simple syrup (one part sugar, one part water)
PREPARATION: Bring a small saucepan half-full of water to a boil over high heat. Add the mint and blanch until wilted and bright green, about 5 seconds. Strain and add to a blender with the simple syrup. Blend until thoroughly liquefied and strain through a fine-mesh sieve, pressing firmly to extract all the liquid. Refrigerate before using. (Recipe yields about 3 ounces, enough for 6 drinks.)