Foundation - Chain an odd number of stitches.
Row 1 - 1sc in 2nd ch from hk, 1sc in each st to end, turn. [The stitch count for this row and all other rows will be 1 stitch less than your foundation chain]
Rows 2-3 - 1sc in the 1st st, BLsc in each st until 1-st remains, 1sc in last st, turn.
Row 4 - ch2, *sk 1-st, 1hdc in next st, 1hdc in sk st, rpt from * until 1 stitch remains, 1hdc in last st, turn.
Row 5 - 1sc in each stitch, turn.
Row 6 - 1sc, * sk 1-st, 1sc in next, puff in sk st, rpt from * until 1 stitch remains, 1sc in last st, turn.
Row 7 - 1sc in each stitch, turn.
Row 8 - ch2, *sk 1-st, 1hdc in next st, 1hdc in sk st, rpt from * until 1 stitch remains, 1hdc in last st, turn.
Pattern Repeat - Repeat rows 1-8 until you reach your desired length, then end the pattern with rows 1-3 to make both ends match.