“These berets are k in the rnd. You can first cast on with circular needles, work with them until there are too few stitches to manage, and then switch to dpn, or you can cast on with dpn and use them throughout.”

Other recommended yarns:
Knit Picks Comfy
Rowan All Seasons Cotton
Jarbo Garn Raggi
Plymouth Encore
Tahki Savoy
Mark & Kattens Feeling