Cookies may break in the jar, but you certainly shouldn't put broken pieces into the jar at the start. Clearly, the best way to handle this problem is to eat the broken pieces.
Stewardship is a very important matter, especially when it comes to cookies.
Our culture is very much into stewardship in the environmental movement, although, no one uses the term. There is a fundamental recognition that this earth is a trust, not something we own, or can take with us, therefore we do well to be wise in our use of its resources. After that however, it's all downhill. Not so, however, with the people of God. We embrace stewardship because it is the command of God to care wisely for His creation, recognizing that all the resources we have in this life are a trust from Him, for which, one day, we will be held accountable.