Berwick Stitch tutorial. Also know as: Tailored blanket stitch. This stitch serves the same purpose as what the blanket stitch does mainly, that is, secure fabric edgings. The difference is that we make little knots while making the blanket stitches. When worked closely, the edges would look more defined and bold. You need to know the blanket stitch to be able to understand this tutorial. I will work between two parallel stitch lines.