Awhile ago I was at the grocery story and needed one lime, but all they had were bags of limes. So I thought to myself, when life gives you limes, make dessert. I also happened to have graham crackers and some cream cheese, and thus was born the idea of a key lime style cheesecake bar.
Key lime pie is a ridiculously simple dessert that is basically sweetened condensed milk, lime juice, and a binder. I usually add sour cream to my key lime pies, but because I was making bars instead of a pie, I used cream cheese instead to add a slightly fluffier, more cheesecake-like texture.