As an English girl that has only ever eaten (real, fresh, French) croissants by themselves... Is it normal in France to cut them up and make a sandwich with them? Or is that something the US did? I never saw a "croissant sandwich" in France but I saw many in the US. I don't understand it as a properly made croissant eaten by itself is heaven. I don't see the need to turn it into a sandwich!!  Adding other ingredients ruins the amazing taste of a fresh croissant!! Please tell me it's just a US thing? Then again... the "croissants" they use for their sandwiches are nothing like a real French croissant.