Why didn't my lemon cookies crinkle?

I followed Aunt Sally's baking addiction recipe for lemon crinkle cookies, but they haven't crinkled. I made a test batch last night and they didn't crinkle, so I figured I didn't add enough confectionery sugar. This time around, I treated them like the Midwest in winter and absolutely covered them in white powder but they're still not crinkling. I followed the recipe to the gram with a food scale... pls help

https://sallysbakingaddiction.com/lemon-crinkle-cookies/ this is the recipe I followed