Leo's bun is a small pastry cafe on a quiet alley in Aldgate East, selling Hong Kong-style pineapple buns and drinks. The lemon iced tea is not heavily sweetened and has a clear lemon aroma. Staff whisk the matcha latte by hand in a fresh cup, and taro and panna cotta buns are filled to order. Depending on the item, the buns can taste mild or be underbaked.