The Boston pie at Yi Shih Yeh’s Taiwanese sweetshop is not what you’d expect—for one, there’s no chocolate glaze. Instead, this fan-favorite take on the classic treat is a large, sugar-dusted whoopie pie, with two flaky, delicate circles of sponge cake sandwiching vanilla-cream custard. The teensy Flushing storefront also has a limited but top-notch menu of cakes, including a sizable selection of roulades, in two display cases. The green-tea roll is a delectable swirl of crumbly, poundlike cake and whipped vanilla cream, brightly hued but subtly flavored with Japanese matcha powder. The cakes are available whole only, but they're a bargain at less than $30 each.