You will need:
4mm hook (G)
a small amount of yarn
1: make a magic circle, ch2 (counts as dc), 11dc into circle, join to first dc (12dc)
2: ch2, 2dc in each stitch. join to first dc (24dc)
3: ch1, *3sc, hdc, 3dc in one stitch, hdc* repeat to beginning stitch. Join and fasten off. Weave in ends.
You can use this square for any project that requires granny squares, I used this pattern to make my patchwork dog pillow. (tutorial coming!)