This video-tutorial shows you two version of the i-cord Cast On.

One additional tip: Use a larger needle for the Cast On then for the rest of the project, so your i-cord is stretchy enough (especially if you’re casting on for a brioche project).

i-cord Tab: For an i-cord tab, work a shorter i-cord an then only pick up one or three stitches – depending on your pattern. There is an older video (without sound) for that CO as well.