DC makes Nigella Lawson's salt and vinegar roasted potatoes and then welcomes Rick Perlstein (author of "Nixonland," "The Invisible Bridge," "Reaganland") to talk airport food rituals, post-yoga-class Reubens, Reagan on the mashed-potato circuit, how a guy named Earl Butz destroyed the family farm, bachelor food shopping at CVS, Chicago grocery store culture, book club with the Watergate Babies, Reggie Bars, and a whole lot more!

RECIPE: https://www.nigella.com/recipes/salt-and-vinegar-potatoes