When chef Heston Blumenthal was a kid, he wondered why people loved to dunk their biscuits into tea. Courtesy of the University of Nottingham hide caption

toggle caption Courtesy of the University of Nottingham

Poppy seed cookies bring back memories of watching Dallas with Aunt Ida, the Brass Sisters say. Maren Caruso/Getty Images hide caption

toggle caption Maren Caruso/Getty Images

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