This article is adapted from the September 28, 2024, edition of Gastro Obscura’s Favorite Things newsletter. You can sign up here. Growing up in suburban New England, fluffernutters—two slices of white bread slathered with peanut-butter and marshmallow goop—were a lunchbox staple for many of my classmates. For the elementary school set, it’s a pretty optimal snack, one that fully dispenses with the vague pretense of fruit in a PB&J in favor of a maximum sugar rush. The combination has been a cult fixture in the northeast for more than a…