You won't believe how easy it is. All you need is a food dehydrator. I know a lot of people who have them and never thought of making this delicious treat. I have been making them for years.
Today, I started my first batch of the year. All you need to do is cut your cherry tomatoes in half and place them face up (so the skin is on the bottom) on the trays. In a couple days, you will have a gormet treat that will keep for months. If I get enough tomatoes, I will make them in the hundreds--and I never get tired of them.
You can use bigger tomatoes, but if you don't place them with the skin on the bottom, they will stick to the tray. Also, if you cut the pieces too big, sometimes they will get moldy before the dry--not good.
I like tossing them into canned cream corn for a quick and tasty soup. Dad and I used to fry potatoes with peppers and sun-dried tomatoes. They were so good that way, that this year, since I have a lot of peppers, I might do that, again. They taste good in pasta dishes and are good plain, too.
If you have a dehydrator and some cherry tomatoes, you just have to try it.