1/2 lime, cut into wedges
4 fluid ounces vodka
1 1/2 fluid ounces frozen limeade concentrate, thawed
1 teaspoon vanilla extract
2 twists lime zest, garnish
Place the lime wedges in the bottom of a mixing glass and muddle them well. Cover with ice, and pour in vodka, lime juice, and vanilla. Shake well, then strain into two stemmed cocktail glasses. Garnish each with a twist of lime.