This was so easy and so fun! I love when basic stitches give such exciting results. This is just granny square corners stacked on top of each other over and over again. Since you need a chain to get you to the next stack, it gives the appearance of a stair step. It's actually an edging suggested in 200 Pattern Stitches for Baby Blankets called granny braid, but in a big gauge it's a scarf all on it's own!