How To Crochet the Blanket Stitch ~ This easy stitch is perfect for an afghan or blanket. It is just sets of (3) stitches: one single crochet and two doubles. Once you get into the hang of it, you can do it in your sleep! Use it for a baby blanket in a pretty pink or blue or for a regular afghan with bright colors! You can change colors after a few rows for a multicolored effect.