Mix the tea and water in a saucepan and bring to a boil. Reduce the heat to a simmer and simmer for 10 minutes. Remove the tea bags or strain to remove the tea residue.
Pour the black tea base back and forth a couple of times to enhance the flavor and remove the bitterness since we are making a strongly brewed black tea base.
If you prefer to add some boba pearls, as we do, cook the raw boba pearls according to this instruction.
Add boba pearls first, followed by iced cubes. Pour in about two or three tablespoons of sweetened condensed milk. Finally add coffee liquid.