Put liquids and ice in blender and blend until smooth. Pour into glasses.
Bonus: If you can get Passoa, pour a couple of ounces into the glasses after pouring in the frozen mix. The Passoa settles to the bottom, making a beautiful "sunset" looking drink while adding an additional touch of passion.
If you cannot get fresh passion fruit juice (which is incredible all by itself), you can use substitute Welch's Passion Fruit Drink (one of the Welch's Orchard Tropicals). You should be able to find Welch's Passion Fruit Drink in the refrigerated juices section at your grocery store.
If you have access to a good gourmet market, you may also be able to find frozen pure passion fruit puree. Mix the puree with water to make real passion fruit juice. You may need to add a touch of sugar, as passion fruit juice is very, very tart.