Now, this is our kind of gastronome. Gabrielle Hamilton, James Beard Award-winning chef and owner of Prune (in New York City's East Village), will speak on Thursday at the Herbst Theatre as part of the City Arts Lectures series. In addition to knowing her way around a kitchen, Hamilton also penned the exquisite Blood, Bones, and Butter. Anthony Bourdain hailed the memoir, saying, "Simply the best memoir by a chef ever."

Another bullet point on Hamilton's resume? Allegedly sleeping with her sister's husband. That is, if you believe the take-with-a-boulder-of-salt reporting of Page Six.

Gabrielle split with Fuortes last month after she admitted she was still having a fling with her brother-in-law. A source told us, "The family is torn apart, with Gabrielle’s husband and sister refusing to speak to her or Michael."

A source said the spouses believe the romance started in the summer of 2010, when Gabrielle spent a few weeks on vacation at Melissa and Michael’s house in New Jersey. After a few months he told his family he was moving out.

"After Gabrielle’s book tour in May, her sister found out and confronted her husband,” the source said. "Gabrielle told her husband about the affair. But she said it was the biggest mistake of her life and convinced him to go on a family vacation to Italy. But in September, she confessed she had restarted the affair."

Hamilton, for her part, denied the affair. Her family have all refused to comment.

If you'd like to see Hamilton--and why wouldn't you?--go here.