Whipped blanket stitch

This stitch is formed of a line of blanket stitch with a thread whipped around the lower edge of the stitch. The whipped thread can be the same as the blanket stitch thread, or a contrasting one.
Method
1
Work from left to right. First make a row of ordinary blanket stitch.
2
At the end of the blanket stitch, make a small stitch to anchor the thread.
3
Introduce a new thread, coming up right next to the anchoring stitch at the end.
4
Work from right to left. Pass a tapestry needle under lower edge of each blanket stitch for whipping.
5
At the end of whipping, simply take the needle down through the fabric.

Structure of stitch
Common uses
Embroidery Techniques
References
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Jennifer Campbell, Ann-Marie Bakewell, Guide to Embroidery Stitches (2004) , p.122