Inspired by the addictive White Castle burger, we set out to re-create the original. Of course, no slider is worth its weight unless it’s on a stellar bun, so we developed one of those too: squishy, slightly sweet, and perfect for sopping up burger juices. If you don’t feel up for a hamburger, you can serve these as dinner rolls, but be sure to plan on more than one per person—they go fast.
What to buy: The shortening and whole milk are critical to the softness of the buns, so don’t try to substitute either.
Game plan: These are best the day they are made but will last up to 3 days when stored covered at room temperature. To revive the buns, give them a pass in the toaster just long enough to warm them through without baking any further.