A tiny grenade of umami, the humble anchovy gives chefs a secret weapon for deepening the flavor and richness of sauces and stews. It melts away as it cooks, leaving only salt and a savory meatiness. But Italians take anchovies out from behind the curtain, celebrating them in the dish bagna càuda, in robust pasta sauces, and as a classic pizza topping. And this Italian Anchovy Bread (aka Sfogliata), sliced into colorful little pinwheels with luscious paprika-spiced filling, further proves how anchovies can command center stage. We first learned about this easy and elegant bread from Ruth Reichl’s book, My Kitchen Year. Ruth, the longtime Editor-in-Chief of Gourmet and acclaimed food critic at the…