Blend green tea powder, milk, vanilla extract, berry syrup, and crème Frappuccino syrup using a blender until the mixture achieves a smooth consistency.
Pour the mixture into a glass over ice.
Top the drink with whipped cream or berries of your choice and serve.
Notes
You can easily buy any berry syrup at a grocery store or make it home.
You can omit whipped cream and plant-based milk if you want a healthy drink.