I sew folded binding to the front, wrap to the back and stitch in the ditch from the front, catching the binding, and covering the seam line. The trick to making it look nice is to use an open toe foot so you can see where you are stitching in the ditch. IF It is a cotton back, I also quickly press the binding away from the quilt front, towards the outside edges. It seems to help. IF I don't catch the binding for a few inches on the back, I simply roll more of the binding to the back and stitch those few inches again. Match bobbin thread to the binding. On the front I often use invisible.