I’ve used Minky on the back of many quilts over the years- love the stuff. I always use batting. I know some people don’t. Be sure to smooth it- don’t stretch it. I machine quilt it with wide, flowing designs. It quilts up beautifully. I wasn’t successful folding over the Minky for self binding the one time I tried so I just attach binding out of quilting cotton- something from the front usually- I machine to the back, fold forward and hand stitch it. If you are good at machine binding the folded over Minky might work for you. I’ve just never managed to do it.