01 - Bring 2 cups of water to a rolling boil. Add the black tea bags or loose-leaf tea and steep for 5 minutes until fully extracted. Remove the tea bags or strain out the leaves and set the brewed tea aside to cool completely.
02 - Prepare the quick-cooking tapioca pearls following the package instructions. Once tender and translucent, drain and rinse them under cold running water to halt cooking. Set aside.
03 - In a small saucepan, combine the blueberries, granulated sugar, 2 tablespoons of water, and lemon juice. Simmer over medium heat for 5 to 7 minutes, stirring gently until the berries burst and the mixture thickens. Mash the berries with a spoon, then press through a fine mesh strainer to yield a smooth, vibrant syrup. Allow to cool.
04 - Divide the cooked tapioca pearls evenly between two tall glasses. Fill each glass generously with ice cubes.
05 - Pour 2 to 3 tablespoons of blueberry syrup into each glass. Add half of the cooled brewed tea and half of the cold milk to each glass. Stir gently to combine the layers. Sweeten with honey or your preferred sweetener to taste, if desired. Serve immediately with wide boba straws.