From The Boys' and Girls' Little Book of Alcohol, available at amazon and iTunes:
The Madras is a more complex Screwdriver: vodka, OJ, and cranberry juice. It’s great stirred together, but you can layer it like a Tequila Sunrise. Here’s how:
1 part premium vodka—Absolut, Grey Goose, Stolichnaya, Belvedere….
1.5 parts cranberry juice—preferably the 100% juice kind (then again, ignore my pickiness; use what you like)
1 part orange juice (the no-pulp kind if possible)
Fill a tall glass with ice, and add the vodka. Give it a stir. Pour in the cranberry juice and let it settle. Then attempt to float the OJ on the cranberry juice by pouring it gently onto the back of a spoon, which you have inserted into the glass at the top level of the OJ. If you fail the first time, drink the ruined cocktail and keep making and drinking them until you get it right. Then drink it.