1 oz vodka
3/4 oz peach schnapps
cranberry juice
grapefruit juice
Add vodka and peach schnapps to a highball glass. Fill with equal measures of cranberry juice and grapefruit juice, and stir.
Most places use orange juice not grapefruit juice.
It's one of those drinks that has loads of different recipes. For example if you buy one on the continent cranberry juice is difficult to source so they'll make substitutions.
Crap drink anyway!