People participate in the Philadelphia Activities Fair at the Philadelphia Ethical Society on April 12, 2026. | Hannah Beier for Vox
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Caitlin Squier-Roper, 45, recently discovered an intriguing club on Instagram: Philly Cooks a Book, a monthly meetup where locals prepare and share an assigned recipe from a specified cookbook. She could’ve enrolled through the group’s social media and shown up to a meeting, dish in hand, not knowing a single s...
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