In a high-powered blender, place all the ingredients, except the strawberry jam. Blend until smooth.
Pour some of the vanilla frappuccino mixture into the cup. Add a dollop of the strawberry jam and swirl. Pour more vanilla mixture, another dollop of strawberry jam, and finish with vanilla frappuccino mixture.
Top with whipped cream and another dollop of strawberry jam.
Notes
If you prefer, you can mix the strawberry jam right in the blender with the other ingredients for a blended drink rather than a layered drink.
This recipe really isn't a good one to make ahead. You'll want to drink up as soon as the drinks are made.
Try another flavor of jam or jelly for a new experience!
Watching calories or sugar? Swap out ingredients and use a lower calorie or sugar-free variety.