Shaken with ice, this tangy margarita is a refreshing way to beat the heat in style. Prep Time: 10 minutesCook Time: 0 minutesTotal Time: 10 minutesServes: 4Ingredients:1 lime wedgeCoarse salt1 cup grapefruit juice1/4 cup lime juice6 oz tequila 2 oz orange liqueurIce cubes4 grapefruit slicesInstructions: 1. Rub rims of 4 shortball glasses with lime wedge. Arrange salt in shallow dish. Dip rim each of glass in salt. Set aside.2. In cocktail shaker, combine grapefruit juice, lime juice, tequila and orange liqueur. Add ice cubes; shake until frosty. 3. Divide among prepared glasses. Garnish with grapefruit slices.Tip: Alternatively, rim glasses with coarse sugar.