Never Fail Banana Bread

Yesterday, Phoebe came home from school with her aspiring-baker friend Abby (different Abby) and declared "We want to make bread."
"How long is this playdate exactly?" I asked.
"Abby's mom is picking her up at 5:30."
"Hmmm." I was a little concerned about their plan.
"Aw c'mon...We can make that easy bread you always make?" She was, of course, referring to…