How to Crochet a Simple Puff Stitch Cord for beginners – step-by-step video tutorial and free pattern. For crochet beginner's, it will introduce the weave of simple basic: a foundation chain, double crochet and puff stitches. A Puff stitch. To crochet a puff stitch, you half-close several stitches worked in the same stitch and then join them together to finish the stitch. Step 1: Make a slipknot and work a foundation chain (Ch 8) Double crochet through the 1st ch Ch 2, (4-hdc puff stitch) through the 1st ch Step 2: Ch 4 Turn, double crochet Ch 2 4-hdc puff stitch Repeat 'Step 2' until you reach the desired length