I haven't tried it yet (I keep forgetting to try it out) but I like the idea of Donna Jordan's method, using a 2 1/2" binding and a seam allowance in between 1/4" and 1/3", sew the binding to the front, finger or iron press the seam, fold the binding to the back and stitch in the ditch (on the front seam) to sew the binding to the back. Here's her video showing how, you can start at about 11:45 if you don't want to watch the entire process:
https://www.youtube.com/watch?v=dQgjp4Upt8w