A few people emailed me an Math article on arxiv about cutting a pizza, and since I wrote the book (literally) on cutting muffins, they thought it might interest me. It did, though perhaps not in the way they intended. I got curious about math problems that involve food. Here are some
The Candy Sharing Game. See this paper (here).
Sharing a pizza. See this paper (here)
Cake Cutting. See this book (here) or google Fair Division on amazon
Chicken McNugget Problem. See this paper (here)
The Ham Sandwich Theorem. See this paper (here)
Spaghetti Breaking Theorem. See this paper (here)
Perfect Head on a Beer. See this paper (here)
A smorgasbord of math-food connections, see this pinterest posting (here)
And of course the question that has plagued mankind since the time of Stonehenge:
Why do Hot Dogs come in packs of 10 and Hot Dog buns in Packs of 8 (here)
All of these problems could have been stated without food (The Chicken McNugget Problem is also Frobenius's Problem) but they are easier to understand with food.
I am sure I missed some. If you now of any other food-based math problems, leave a comment.