A Little HistoryÀ la provençale in nineteenth-century French kitchen usage generally implied oil, garlic and parsley -- the cooking fat of the south standing in for the butter of the north, with garlic marking the dish as unmistakably Mediterranean. Charles Ranhofer, chef at Delmonico's in New York, compiled The Epicurean in 1894 as a working encyclopaedia of that grand-restaurant repertoire, and its potato section runs to dozens of numbered variations distinguished by little more than a cut and a garnish: Pont-Neuf on one side of this entry, Sarah on the other. The slip from oil to butter in the final line is the kind of small editorial seam that shows through in a book of this size. Garlic is often said to have been regarded with some suspicion in American dining rooms of the period, and its appearance here is contained -- "a little garlic and a little onion," chopped fine and added at the end.