Bagels: Coming full circle

The bagel is in its rainbow era, but this beloved bread's journey goes way back. We're rounding off season one with a dense, doughy episode that's both scrumptious and surprising. We trace the humble bagel's roots to medieval Poland and follow its North American makeover (are you team New York or Montreal?). A snack for queens, laborers and trendsetters – here's the real story of the bagel.