Blue biscuits of love

So awhile back I had worked late at work the night before and got called into work around 11pm and worked til about 4am. Then I had to go back into work at 6am and worked til 10am. So when I got home from work Jane made me breakfast. She made homemade biscuits. Yummy I love biscuits. But when the biscuits came out of the oven there was something not right about them. Here is a picture of them, see if you can tell what is wrong with them.


That's right they are blue, I asked Jane why they were blue. Her reply was "I put blue food coloring in them, I know blue is your favorite color." Aww how sweet, but I grabbed the milk and smelled it. Yep the milk was a little off. I was nice and ate the biscuits anyways. Boy did I regret it. I was sick for the next few days. LOL So the question is, did she really put blue food coloring in them or was it bad milk?