Instructions:
Pour chilled peppermint schnapps (preferably Avalanche Blue) into an empty glass. Mix grenadine and water in a seperate glass. Using a spoon, layer the grenadine-water mixuture on top of the peppermint schnapps.
Take a few seconds to admire the bright red layer on top of the blue schnapps underneath. Then slam it.
7-up or Sprite can be used in place of water--this tastes better.