Last week our fabulous undergrad, O, turned 21! After seeing a photo of a poo cake a friend posted on his Facebook wall, I decided that what this young man really needed in life is a gut microbiome cake. We talk about poo all the time in lab and we’re fascinated by microbiomes, so this seemed like a fabulous project to take on this weekend instead of writing my graduate proposal. This was especially well-timed given the recent publications by the Human Microbiome Project. Today’s post will be about the cookies and the next post will show the cake (less exciting).