This is a fabulous, refreshing, and potent concoction, which is ideal for launching a summer party. I discovered it courtesy of my friends Sloan and Roger Barnett. One of my favorite things about it is its subtle green color. The tricky thing about frozen drinks like this one is that you don't taste the alcohol.  It can give such a fresh, innocent impression but it can sneak up on you. So be careful, and enjoy!

Ingredients

• 8 ounces high-quality vodka
• 2 tablespoons fresh lime juice
• 3 tablespoons superfine sugar, plus more to taste
• 1/2 cup fresh mint leaves, tightly packed

Instructions

Combine all the ingredients in a blender full of ice cubes and blend until the contents achieve a uniform frozen consistency. Add more sugar periodically as needed, or until the mixture is just right.  Serve in champagne flutes.