1 1/2 oz of Tequila
1 1/2 oz of grapefruit juice
water
1 tsp of orgeat syrup (or almond syrup)
Pour the tequila, grapefruit juice and orgeat syrup into a cocktail shaker half-filled with ice cubes. Shake well, and strain into an old-fashioned glass. Fill with water, garnish with mint sprigs, and serve.
Serve in collins glass.
Garnish with orange slice.