Downingtown’s Wegmans is hosting a summertime cooking session geared around the seasonal favorite—the sandwich slider. As a hip picnic addition aside from the usual adored bites, chefs at the local superstore will demonstrate how to prepare the perfect piled buns. Swing by and attend on Tuesday, July 6 at 6:30 p.m., and be sure to purchase a ticket prior by popping by the Customer Service Desk to reserve your spot. $10 per person, with Wegmans’ Shopper’s Card.