Teething Biscuit Failure

I had another Pinterest failure today. I think Jo is teething, so I decided to make a quick and easy teething biscuit from this pin:
http://pinterest.com/pin/216383957066422488/

At first, it seemed to work well:

But within a few minutes, it broke from her gumming it:

That could have been a pretty risky choking hazard! I'm glad I was watching when it broke off. I won't be making those again!