What is hard on the outside soft in the inside?

"Hard on the outside, soft on the inside" is a phrase commonly used to describe someone or something that appears tough or unapproachable on the surface, but is actually kind and gentle at their core. This phrase is often used as a metaphor to describe people who have a tough exterior but a soft heart. It can also be used to describe foods that have a crispy or crunchy exterior but a soft, tender inside, such as fried chicken or bread. Overall, this phrase emphasizes the idea of not judging someone or something based solely on its outer appearance and recognizing that there may be more beneath the surface.