You will need the following:
Yarn of your choice, a hook and a 20mm Knitting Needle or Broomstick handle.
The pictures are pretty clear and should help as you go along (warning this post is long)
You can work Broomstick Lace over as many threads as you would like, and for this tutorial, I have used 4 threads on a chain of 20 = 5 Broomstick Loops
Firstly chain the number required for your project (ie 20)
Transfer this loop onto KN = 2sts on KN
Continue along chain placing loops pulled through onto KN = 20sts KN
Now the fun bit starts.
Put your hook into the first four stitches in the KN, knit wise
Wrap yarn around hook and pull through
Pull off - but take care - ALL the loops off KN
(Don't worry that large loop you can see in pic is actually tail of my chain)
Transfer stitch left on hook onto KN
Then put hook into 2nd SC along ( see where hook is)
Continue along the next two stitches, transfering loops onto KN = 4 loops on KN
You next put your hook, in the first SC made, and pull through yarn
(see where hook is)
And then continue to pull FOUR loops and transfer - 1 loop per stitch
= 20 loops on KN
Repeating what you have done previously -
Hook into 4 loops knitwise and fix stitch etc
Not very lady like, but it works a treat!