How to crochet griddle stitch: alternate sc and dc

Make the rows

1. Foundation: chain an even number, plus 1. Single crochet in the second chain from the hook, double crochet in the next chain; repeat [single crochet, double crochet] to the end.
2. Chain 1 and turn; it does not count. Single crochet in the first double crochet, double crochet in the next single crochet; repeat across.
3. Every row starts with a single crochet, so it always lands on a double crochet from the row below.

Try a practice strip

Chain 21: work [sc, dc] 10 times for 20 stitches. Work 10 rows. Count 20 stitches each row: 10 single and 10 double crochets.

The two stitches have different heights, but each row averages out flat because the tall and short stitches swap places every row.

Use it in

Dishcloths and washcloths that scrub well, placemats and bags. Work the first washcloth in griddle stitch instead of single crochet, keeping an even stitch count.