This morning I was offered some cookies at work and as I went to take a cookie I noticed a piece of bread on top of them inside the ziplock bag. I asked why, and I was told that a piece of bread in with the cookies keeps them fresh. And apparently people have been doing this for years. This was news to me, so I wanted to find out more about this and how it works.
The trick is simple: place a slice of fresh bread in with your cookies a day or two after you’ve baked them, or whenever you find their texture has deteriorated. The moisture from the fresh bread will migrate to your cookies (through cookie osmosis, see diagram above), rendering them soft and chewable again. It will literally unstaleify them!
Originally posted at megnut.com.
And by the way, the cookies tasted great! I think I will have another!