This is how I did my blanket stitch binding and I love how nice and flat it sits on the quilt.
Fold the fabric in 1/2 and in 1/2 again to make it easy to cut. make sure it is squared from the fold to ensure your strip is a straight piece of fabric when you open it out. Cut a 3 1/2" strip. Cut enough strips to go right around the quilt. Cut the selvedge edge off each strip.
To join each strip on the bias, to make it continuous, lay the fabric right side to right side to form a right angle. Draw a line from the left hand corner of the under strip to the bottom right hand corner of the top strip. It should be a perfect triangle. Sew on this line.
Leave a 1/4" and cut remainder of fabric off
Open out for a perfectly joined bias seam
Press binding in half
Cut the beginning of the binding on the 45 degree angle
Roll binding into a ball
Place the leg of your sewing table into the middle of the binding ball
This makes it easier to sew the binding onto your quilt without it all tangling. Leave 10cm of the binding loose before you start sewing in the middle of the longest side of the quilt. SEW THE BINDING ONTO THE WRONG SIDE OF THE QUILT with a straight stitch. I use my walking foot and sew it on using the width of the foot with a 1/2" seam allowance.
Stop 1/2" before the end of the quilt and back stitch
Fold the binding at a right angle so the fold lies to the corner of the quilt, then fold it back onto the binding with this fold lying right on the edge of the binding and quilt.
Start sewing from the folded edge of the binding
When you get to the end stop 20cm back from where you started. Place the remaining binding inside the beginning binding with the bias cut. Make where the end of this bias sits on the overlapping binding
Draw a line and then add 1/2" to allow for the seam allowances
Place right side to right side and sew a 1/4" seam, press open, and cut dog ears off.
This should now fit perfectly to finish the binding. Sew onto quilt to complete sewing binding onto the quilt
Fold the binding over onto the right side of the quilt with the folded binding edge sitting on the stitch line.
On my Bernina the blanket stitch is number 25 and I used a stitch width of 3 and a length of 3.3 and a mirror image.
Mitre the corner by folding a point to the edge of the binding. then fold this point back onto the binding to get your corner
Continue sewing until you are all the way around your quilt
Thanks for the visit