Boil water in a saucepan and add the tea bags. Steep the tea for the recommended time, usually around 3-5 minutes, depending on the type of tea you're using.
Remove the tea bags and let the tea cool down to room temperature. Once cooled, transfer the tea to a refrigerator and chill for at least 1 hour.
While the tea is chilling, prepare the tapioca pearls according to the package instructions. Typically, you'll need to boil the pearls in water for a specific amount of time and then let them sit for a few minutes to achieve the desired chewiness.
Drain the cooked tapioca pearls and rinse them under cold water to remove any excess starch. Set them aside.
In a separate container, mix the sweetener with the milk until it is well combined. Adjust the sweetness to your liking by adding more or less sweetener.
Once the tea is chilled, remove it from the refrigerator and pour it into a glass. Add the desired amount of milk mixture and stir well to combine.
Finally, add a handful of cooked tapioca pearls to the glass and top it off with ice cubes. Insert a bubble tea straw and give it a gentle stir before enjoying your homemade bubble tea!