When we were making our tomato sauce, we made it both with and without skins. For the batch without skins, rather than throw out all the seeds and skins, we decided to process them a bit more and make a tomato powder, usable for soups, ketchup, etc…
Once we had all the skins and seeks extracted, we put them in trays in the decorator and dried them until they were a crispy layer.

Once they were completely dry, we processed them in the blender to make a powder as you can see here. It is pretty neat to see an entire blender of skins and seeds reduced to just this much powder in the end. You can imagine the flavor intensity.Here is a jar of the final resulting tomato powder, which is delicious.