A few months ago we had the pleasure of attending one in a series of pop-up dinner parties at the Atlantic Avenue catering kitchen run by Kelly Geary, the cook and caterer behind the farm-centric company Sweet Deliverance and the author of the canning and pickling book Tart and Sweet. This weekend those pop-ups are back in action, and for the second time Geary is sharing her stoves with the Underground Food Collective from Madison, Wisc.