I used the basic mitten directions from a pattern I think is called Classic Mittens and while I thought I was following a different pattern for the design, I inadvertently created a whole different one! I cast on 44 stitches, worked k2p2 ribbing for about 20 rows. To create the effect, I slipped every 4th stitch for two rows, the next row, I knit through the back of the stitch. I then knit two rows and altered the placement of the slipped stitch.