Which is the odd one out and why butter milk cream cheese?

* Butter and Buttermilk: Both are dairy products made from milk. Butter is made by churning milk fat, while buttermilk is a byproduct of butter production.

* Cream Cheese: While also dairy-based, cream cheese is made from cream, not milk. It's a spreadable cheese with a high fat content.

Therefore, the connection between butter and buttermilk is stronger than the connection between them and cream cheese.