I made a little video demonstration (below), showing how to embroider French knots. I found this embroidery stitch quite tricky when I first tried it and looking at diagrams in embroidery books didn't really help me. But I've since taught myself how to sew them so thought I'd show you how I do it.
The key is to hold the thread taut with one hand while you wrap it around the needle and insert it into the fabric. Hold on to the thread until just before it is pulled all the way through the fabric (see video below).
This is an example of a singular French knot but you can make them larger by wrapping the thread around your needle twice rather than once. This video shows how I stitch the French knots onto my fabric mushroom hanging ornaments.
... and here is a little diagram showing French knots in more detail. I drew this a while ago for one of my sewing patterns. Enjoy!
My name is Margeaux Davis. I'm a doll-maker, sewing pattern designer and illustrator, based in northern New South Wales, Australia.