I'll have to try out the thumbprint cookies sometime. We make our own jam and jelly so I'm sure they would go nicely with the cookies. We've made elderberry jelly, wild grape jelly, mulberry jelly, red raspberry jam, peach jam, and strawberry jam. We also have a big book on making jams and we might be trying out apple pie jam and carrot cake jam. I bet those would taste great on a cookie
