CLEMENZA Making SAUCE The GODFATHER SUNDAY SAUCE Of all the fine traditions of the Italian-American enclave in the United States, the Sunday afternoon ritual of making and eating a Sunday Sauce, a.k.a. āGravyā is Italian-Americaās most Time-Honored of all. Mamma, Grandma (Nonna), whoever will make their celebrated āSunday Sauceā and all is glorious. Sundayā¦