In case you need encouragement to reignite an old childhood flame, or fan a new one, here’s my plea to make yourself a fluffernutter sandwich before summer ends. There’s little better and close to nothing simpler than a peanut butter sandwich for taking to the beach or park or trail. Jelly is the classic, of course. (Blueberry is my preferred.) But over the weekend I had a sudden urge for an old fashioned fluffernutter, which is to say, a peanut butter and fluff sandwich. Fluff being the ...