What does America really eat? Which recipes do real home cooks turn to again and again? More often than not, they are dishes handed down from great aunts and painstakingly copied out of smudged recipe boxes rather than the creations of celebrity chefs. Bonny Wolf, food commentator for NPR's "Weekend Edition", writes about the great regional and family food traditions in this country—birthday cake and dinner party food, hearty American breakfasts and Fourth of July picnic dishes. In Tal...