You will need 5 strips of a dark color and 4 strips of your background (1 1/2 x 6 inches) Cut four squares of your background fabric (3 1/2 inches) and two of a contrasting color (3 1/2 inches).
Sew three nine patch units using the strips. Lay out with your solid squares as I show below:
Sew units together into your complete block and you are done!
I like to use an odd number of blocks in most of my quilts, but this block works best in even numbered configurations. Here's a setting I liked -
I think this would be fun with something appliqued on those corner squares...hmmm. The Island Batik Ambassador challenge this month is Adventurous Applique - maybe this might be a start to a great idea! One more nine patch unit block coming up next monday - and it's my favorite of the bunch.