Long Grove's chocolate festival bite-sized due to pandemic By FOX 32 Digital Staff Published A sweet festival focused on all things chocolate will open Friday in the north suburbs. CHICAGO - A sweet festival focused on all things chocolate will open Friday in the north suburbs. Long Grove's Chocolate Festival, held at Brothers' Field, will be bite-sized this year due to the coronavirus pandemic. Long Grove says the festival is a little smaller, but there will still be plenty of sweets, and live music. The festival will feature demonstrations on how to make chocolate treats, chocolate-tasting classes, and presentations by professional chocolatiers.