Double-thick, perfect pot holders! Made with cotton yarn. This pattern may be somewhere else on the internet, in a different context, but here is mine for the way I make my pot holders.
Row 1: sc in 2nd ch from hook and sc in each ch across. Ch 1, turn
Row 2: sc in 1st sc, *hdc in next sc, sl st in next sc*, repeat * to * across, sc in last sc, ch 1 turn
Row 3: sc in 1st sc, *hdc in next sl st, sl st in next hdc*, repeat * to * across, sc in last sc, ch 1, turn
Repeat rows 2 and 3 until piece is square. Make two and then using a steel yarn needle and the same yarn used for making them, combine them using an overcasting stitch.