I love trying new stitches out for a dish cloth-it's a great size to learn on and you have something useful when you are finished! These are done in the Brioche stitch. I worked on this last year but I did two color in moving stitches and didn't know how to do it with just one yarn. It was a good refresher especially as I am still so lumpy after the flu-it sure drained me of my usual gumption!
The stitch might look like ribbing but it is ribbing on steroids! The ridges and valleys are higher/deeper and the thickness is double what k1p1 ribbing would be. A very good stitch to have in your repertoire! I have the yarn and a pattern for a single color Brioche hat soon.