Why is a small piece of chocolate called a pip?

The term "pip" for a small piece of chocolate likely originates from the Word's historical association with small seeds or bits. In some contexts, "pip" has been used to describe something small or a fragment, which can be applied to a bite-sized piece of chocolate. Additionally, it might reflect the idea of a small indulgence, similar to how one might savor a small seed or treat. However, the specific etymology in relation to chocolate isn't widely documented.