I took the bus to elementary school every day with Linda, my best childhood friend and next-door neighbor. We always sat together in the third row and shared our breakfasts-on-the-go. Most of the time I had buttered toast or a traditional bao (Chinese white steamed bun)—pretty boring. Linda’s mom often sent her with foil-wrapped packets of Pop-Tarts, which I could never get her to trade with me. She shared bites with me occasionally, but I longed to have my own, and I could never con