Page 299 - Geoffrey Budworth "The Pocket Guide to Outdoor Knots"

Tying
In a doubled cord, begin by tying a carrick bend with the two ends on opposite

sides (figure 1). Then tuck each end in turn, away from the loop (as shown), to

emerge together from what will be the top of the finished knot (figures 2–4).
Carefully shape the knot, with loop and ends going down and up respectively, to
create what resembles a 3L x 4B Turk’s head (pages 144–145), but tied in two

strands (figure 5).