Early in the pandemic, when the idea of venturing to the grocery store felt like going to the moon, members of this Chicago-based Facebook group (now 46,000 strong) posted ingredients from the depths of their fridges, wondering what the heck to cook with them. These days, it’s not quite so fraught (sample question: “Plum recipe ideas? Clafoutis, cobbler, and pudding tried!”) but still plenty of fun (the winner: plum liqueur).