Three key elements define a good cup of bubble tea: tea, milk (or suitable dairy substitute) and chewy tapioca balls called boba. Our city's bubble-tea supply feels limited, what with fewer than ten spots citywide, but Bubble Tea House stands out among them. Tucked away in Chesterfield Mall's food court, this tiny operaton nails the standard bubble milk tea with a frothy consistency (a must) and shines with soft, chewy boba. No cup feels too sweet, and just the right amount of boba ensures that the tapioca's flavor doesn't bleed into the drink. A strong selection is further enhanced with solid recipes and generous sizes.