"Whats added atop a croque-monsieur to make it a croque-madame " NYT crossword answer is:EGG (3 letters length)
The answer for "Whats added atop a croque-monsieur to make it a croque-madame " crossword clue is listed above to help you solve the puzzle you are currently working on.
A croque-madame is a French sandwich made with toasted bread, ham, and cheese, and topped with a fried egg. The egg is what makes it a croque-madame, as opposed to a croque-monsieur, which is the same sandwich without the egg. The name is thought to come from the French phrase "croquer la dame," which translates to "bite the lady."