The Provençal Thirteen: Fennel- and Cumin-Scented Sablés

In France, you'll find sablés,  buttery cookies that originated in Normandy. (You know they had all that butter to get rid of there.) Most sablés are sweet. But in Provence, for the famous Thirteen Desserts of Christmas Eve, cooks prefer savory little disks perfumed with fennel and cumin. Cumin? How did cumin get into mix?…