The blanket is made in square rounds, starting with a magic ring (tutorial and modification available)
Whilst the pattern is not overly complex, it uses techniques that you may not have seen before. It uses linked treble crochet (UK linked double treble) throughout. There is a link to a stand alone tutorial for the linked trebles and a longer video tutorial which takes you through working the first few rounds of the project.
I created a special joining stitch just for this pattern. This allows the linked trebles to be worked in rounds without turning and is what gives the fabric its texture.