Easy chunky crochet mountain cushion

Approx. size: 30cm h & 38cm w

You will need:

10mm crochet hook
Cygnet seriously chunky yarn in white (1 x 100g ball) & slate grey (2 x 100g balls). I also like magenta & just denim.
Stuffing

Terms used:

ch = chain
dc = double crochet (sc in US)
st = stitch
ws = wrong side