This is a wonderful thai beverage which i very recently tasted in Malaysia..it is easy to make,refreshing,cooling and would go with thai dishes like Thai Curry..
Take some lemon grass in water .Add some sugarand boil it for 15-20 mins till you get the flavour of lemon grass in water.Now put it in fridge and let it cool for approx 4-5 hours
Now take the chilled lemongrass water,add some lime juice ,Sprite and put it in the blender.Add ice cubes and let it blend in the blender.Serve chilled.Decorate it in a martini glass with slice of lime.
You will get the flavour of South east Asia!!
Chef's tip: Optionally add fresh coconut cream if you like in the drink..