We did a really fun book called "All in Just One Cookie" last week. It talks about each ingredient in the recipe and whee the ingredients generally come from, like milk from cows in Vermont, vanilla from beans in Madagascar, sugar from Hawaii, etc. As a project, we went and picked up some of the ingredients that they don't get to see much in their raw form.
We grabbed some wheat berries and ground them up in our Vitamix.
We picked up some sugar cane and let them taste it raw.
Emma was the only one who actually liked it that way. :)
Of course, they already know where their eggs and milk come from, so that wasn't too difficult.
Then we baked up the cookies and boy, were they good! :)