So, of course, I had to do the same for my sourdough hamburger buns! To make these buns extra soft, I use a tangzhong (the same method I use in my sandwich bread ... cup flour, milk, and water ...

By Claire Saffitz How many doughs can serve as a base for pillowy cinnamon buns in one moment, and not-too-sweet hamburger buns the next? A relative of Hokkaido milk bread and French brioche ...