Puff Stitch
a rounded, padded bump made from several loops drawn up to the same height and closed together

A puff stitch is built from several loops pulled up to the same height in one stitch, then closed together with a single yarn over and pull-through. Unlike a cluster, which joins several partly-worked stitches from different insertion points, a classic puff stitch usually works from one stitch and draws up multiple loops of equal height into it, giving a rounder, more padded look than a cluster's flatter bump. Loop count (commonly 3 to 5) varies by pattern.
There's no US/UK split on the term. "Puff stitch" is used the same way in both systems.
How to work it
- Yarn over and insert your hook into the stitch.
- Yarn over and pull up a loop to the same height as a half double crochet. You now have 3 loops on your hook (the original loop, plus the yarn over and pulled-up loop).
- Without finishing the stitch, yarn over and insert your hook into the same stitch again, then yarn over and pull up another loop to the same height.
- Repeat step 3 until you have the number of loops the pattern calls for on your hook (commonly 4 to 7 loops total, from 3 to 5 repetitions).
- Yarn over and pull through all the loops on your hook at once.
- Chain 1 to close and secure the top of the puff, then continue to the next stitch.
When to use it
Use puff stitches for a soft, rounded raised texture: puff stitch hats, cowls, and border edgings where a padded bump reads differently from the flatter texture of a cluster. Puff stitches use noticeably more yarn per stitch than single or double crochet, so expect projects worked entirely in puff stitch to use more yarn than the same size in a plain stitch.