NanaSuz, You could do it either way. You could do your blanket stitch with stabilizer, before sandwiching the project. Or you could sandwich the project
and do the blanket stitching, but you won't need stabilizer in that case. In my opinion, it is harder to blanket stitch accurately with the bulk of the batting and backing,
but a lot of people do it. Do you want to see the blanket stitching on the backside. If yes, sandwich it. If no, do it before you sandwich it and use stabilizer.
The stabilizer helps to form the stitch better, and it lays nice and flat. Without it, and not sandwiching you might have the fabric gatheingr up a little causing the
stitches to be disformed. HelenW