The cranberry juice should actually be about 6 parts in order to make a tall drink. Don't worry. The other ingredients drown out the bitter cranberry taste. Apparently I can't edit the amounts without deleting the entire recipe.

In a tall glass add the coconut rum, rum, creme de cacao, vanilla vodka, pineapple juice, cranberry juice and grenadine. Shake and serve over ice.

This should taste similar to a red marble cake.