AHA! I think I’ve found a name for your stitch ... Griddle Stitch!
https://daisyfarmcrafts.com/griddle-stitch/
Start with an odd number of chains. In the second chain from hook, work a single crochet. In the next stitch, work a double crochet. Alternate across the whole row SC and DC. The last stitch you make should be a DC. Chain one and turn. Single crochet into the DC you just made from the previous row. Then, double crochet into the SC. Alternate again across the whole row. Always DC into SC. Always SC into DC.
Hey Hey Hey It has a name! Thanks for the link. It was at least 20 years ago I watched that lady and she explained it. I don’t chain an odd number to start but everything else is the same. The look depends on your yarn I can see. A fuzzier yarn like I am using would give less of a bumpy look. Wow thanks. Fun finding out after all these years. Freepers know just about everything! Or know how to find it.
A-HA, Indeed! Good FReeping! :)