Add 3 to 4 pieces of Ice to glass of choice (I like High Ball or Martini). Pour Vodka over ice until glass is 60% full. Then add Sprite (Mountain Dew also works as a good substitute if you want the Caffeine) until Glass is almost 90% full. Add your favorite Cranberry flavored drink until glass is 95% full. Stir and Serve with a twist of lemon.
May also use frozen cranberries or raspberries in place of ice and then use the melted juice from the bag to add color and genuine flavor. DO not stir this version as the juice often makes a great layering effect. And then add a lime for a good Christmas looking drink. Please note you will have to thaw the berries ahead of time to drain the syrup and then refreeze before serving.