India, Jan. 12 -- Every January, as the sun begins its northward journey, kitchens across India respond before temples do. Lohri (January 13), Pongal (January 14-17), Makar Sankranti (January 14), and Magh Bihu (January 15), festivals tied to the Sun God and the harvest, may unfold in different names and rituals, but share an edible constant: sesame seeds. To understand how this humble ingredient travels across cultures, we turn to chefs and culinary experts from different regions across the country who explain how sesame feeds are tied to cuisine and culture....