Chocolate is naturally gluten free. That’s the short answer. The complication is that “pure unsweetened chocolate doesn’t taste very good” so other ingredients are almost always added. Some of these added ingredients are gluten toxic, others are safe for us, and all of them are designed to improve the finished product.
Most children love chocolate candy and here is a post that lists many of America’s leading candy manufacturers. The great thing about this article is that it indicates both the safe AND the unsafe candies made by these candy makers AND includes phone numbers to call when we have questions.
Chocolate chips taste great in cookies and I even like them in pancakes. They are naturally gluten free the other ingredients provide the taste.