Margarita (al A Sinclair)

Chill a martini glass in a freezer for about one hour. Shake ingredients with ice for 5 seconds. Pour into the chiller margarita glass. Now squeeze your orange twist downwards onto the surface of your drink. This is so that the oil from the oranges skin will sit on the drinks surface and enhance the Cointreau's orange taste. If you have done it right it should be ice cold with a perfect balance of flavours. Ahriba!