To prepare Starbucks chai crème Frappuccino at home, you will first need to make its base drink, the chai tea concentrate.
First, pour your preferred amount of water into a saucepan, put sugar, and stir to dissolve.
Add the rest of the spices into your now-made mixture, and bring it to a simmer for a few minutes.
After it has finished simmering, put a packet of tea bags in your saucepan, and let it sit for a few minutes.
Strain your now-made chai concentrate into your cup.
Pour your chai concentrate into a blender, and add your preferred amount of milk to it.
Add your crème Frappuccino syrup, cinnamon, and ice, and lightly blend.
Transfer your mixture into a cup or glass, and top it up with whipped cream to enjoy.