Then I cut the batting so that there is a even 3"-4" border of the batting around the quilt top.
Next I placed it on the fabric I want to use for my backing with the backing fabric extending at least an inch beyond the edge of the batting. The backing fabric is face up. I like to select the same fabric for the backing and the stripping.
Then I baste the three layers of the quilt top, batting, and backing fabric, together using contrasting thread. I baste it to stabilize it for quilting.
Here is a closer view of the basting stitches...
...and the back of the "quilt sandwich".