Fill a large pot with water and add the uncooked boba pearls.
Simmer them to ten to 12 minutes.
Take the pot off of the stove, put the lid on it, and let it sit for two or three minutes before using a colander to strain the pearls. Put the pearls in a bowl with cold water.
Add the brown sugar and stir until dissolved.
Store the boba in the fridge.
Brew the green tea. Allow the tea bag to steep for two minutes, then remove it and allow the tea to cool for ten minutes.
Add the taro powder to the tea and whisk.
Add the boba and ice to a tall glass.
Pour in the tea.
Top with half-and-half or cream.
Serve with a wide straw.