Waffle stitch granny square pdf pattern

This granny square waffle stitch is easier than you might think. It is all worked in rounds means 
in the front side to form the waffles. It is a repetition of 2 rows throughout the work. The video 
tutorial demonstrates in details how to make it.
Measurements/ gauge
10 cm: 9 rows/ 8 sts
Materials
Medium worsted yarn
5 mm crochet hook