I know that in Sweden they celebrate summer solstice by drinking vodka and eating crawfish. I know this because years ago I did a story on the crawfish industry in Louisiana.
So maybe we could come up with some similar custom(s) for Longerdays! After all, we pretty much invented the holiday.
So what should the food be? Most holidays are associated with particular kinds of food: Thanksgiving, Christmas, Passover, New Year's Eve and Day, Valentine's Day, Easter, Memorial July 4 and Labor Day (the last three pretty much the same).
So what should the foods be for Longerdays?