Hmm, I was sure I didn't have any pictures of cookies, so I was going to see if this would count (a bakery, since there are probably some cookies in there somewhere): Day 17 - Boulanger by limrodrigues, on Flickr
But then I found this picture that I had taken for a blog post many moons ago:
And so the next picture, naturally, is milk (And yes, I would accept a picture of a cow or a goat )