When you knit normally, with one wrap about the needle, you pull one stitch through, right? In this case, you wrap the yarn around the needle twice and pull both those wraps through the stitch.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry