Farrow Rib Stitch
CO 34 sts on size 8 needles
Row 1: K2, P1; repeat to end of row last stitch K1
Row 2: P1, *K2, P1; repeat from * to end.
Repeat for 46 rows or until square measures 8″
This is stretchy kinda reminds me of brioche with the thickness. If you would like your square to lay 8″x 8″ without stretching it you may want to cast on 3 more stitches.