How to KYOK Increase (k1, yo, k1 into the same stitch)

In our Shattered Sun Shawl design, the shawl ends with a ruffled border and in this video, I wanted to show you the technique for making this ruffle edge. It’s really easy but I know it can be unfamiliar and we get asked about this technique quite often.
The ruffle is created by rapidly increasing the number of stitches on the needle using a double increase. This increase is sometimes called the KYOK increase or as we say in the pattern, literally, it’s described as “k1, yo, k1 into the same stitch”.
“k1, yo, k1 into the same stitch” is basically a double increase meaning that increases into the one stitch will result in three stitches, all originating from the same stitch. Click above to watch the video tutorial!
Here’s how to work the double increase:
Knit the first stitch on the left-hand needle, just as you normally would. But then don’t slip the stitch off the left needle.
Keep that stitch there on the left needle while you work a yarn over around the right needle.
Then put your right needle back into the same stitch on the left needle and knit it again and slip that stitch off the left needle. Now when you look at your right needle, you’ll see the first stitch that you knit — that’s ONE, the stitch that you created with the yarn over — that’s TWO, and the stitch that you created by knitting into the same stitch again — that’s THREE. So one becomes three.