The Story of Antoninas andR. [Jehudaha-Nassi] who preferred the cold meals of the Sabbath. The Rabbi explained to Antoninus that the superiority of Sabbath meals over those of the week-day was due to the blessing which rests upon that da}'.
Antoninus Asks Why Sabbath Food Tastes Better
Gaster, Exempla no. 120; cf. Shabbat 119a