These sock are so adorable! Everyone who sees them, loves them. You can knit them two at a time by just casting on two sets using the magic cast technique (link to video is in the directions) or you can do them one at a time if you choose. I would encourage you to try two at a time because it is not that much more work and when your done with one, your done with both! No more knitting the dreaded 2nd sock. Enjoy!