I had just posted and was dashing through to throw out some votes before I got up to get myself ready to go to Mom's for a visit. THEN I saw your cover photo with the beautiful cookies, so I had to come read first. :)

I am familiar with the name Thumbprint Cookies, but here that could mean several different kinds. In bakeries here, you were more likely to see a butter cookie with some colorful soft-set icing in the center. That is where I first ever saw any growing up.

As an adult, I had adapted the idea to a different recipe that has turned out to be one of my Mother's favorites. I use a pecan sandie recipe where I use ground fresh pecans in the butter cookie recipe and then fill the centers with almond flavored soft-set icing. Yum !

We also have a cookie recipe around here that is called Cornflake Cookies, but they actually have the crushed cornflakes inside the cookie dough. They are amazingly delicious and buttery, but they certainly won't be on the healthy side of things!

I may have to try your recipe soon. My Mom loves things with jams and jellies.