For as long as we’ve known Sue Aldrich—from way back in the Dark Ages—we’ve loved her light, flaky biscuits. They’re simply the best. She credits Emily Adair, her great-grandmother and namesake—middle name—for this classic recipe. As Sue tells it, “My paternal grandmother, Ora McKim, was a teenager in Michigan when her father came home with a new wife—Emily—after a brief trip to the city. The ‘city’ was probably Cass City, Michigan, population around 1,200 in 1915.” Emily raised Ora and her sister Cecil, who were barely younger than their new mother. “I’m sure everyone loved Emily—except of course Ora, who saw her as competition,” says Sue. She adds that Ora turned into a bit…