The Williamsburg Taiwanese bakery has only been open for a few weeks, but people are already buzzing about their food. The restaurant is a spin-off of critic’s favorite Win Son. The counter joint’s name is a bit misleading since in addition to doughnuts, custard toasts, and cookies, they also have savory dishes like a burger and a pork-knuckle breakfast sandwich. Grub Street proclaims Your New Favorite Burger Might Be at Win Son Bakery: There’s melted raclette blanketing the burger itself, a garnish of scallions, and an actually special sauce that’s mayo-based and made with funky and savory doufu ru or fermented bean curd as well as ginger, scallions…