Menton is France’s lemon-growing capital, a fact that the whole town celebrates: The tiles in Menton’s Fontana Rossa gardens are painted with lemons, and local restaurants feature them in lick-your-spoon-clean soufflés. Every winter, the road into town closes for a lemon festival that features huge sculptures made of citrus fruits. It seems fitting, then, that a local shop, Maison Herbin, is dedicated to selling artisanal lemon jam, which is made in small batches to coax the fullest flavor from each fruit. The jam shop has become so famous that tours of the kitchen operations now require advance reservations. The shop offers much more than its citrus jams: Also on sale are strawberries preserved with pineapple, and tomatoes packed with eggplant and ginger, in addition to traditional candies, fruit jellies, local honey, condiments, and pickled onions.