SERVES 4
3 tablespoons unsalted butter
2 medium shallots, finely minced (about ½ cup)
2 medium cloves garlic, minced or grated on a
Microplane (about 2 teaspoons)
2 pounds curly spinach, trimmed, washed, and drained
1 tablespoon all-purpose flour
1½ cups heavy cream
½ cup whole milk
¼ teaspoon freshly grated nutmeg
¼ cup crème fraîche
Kosher salt and freshly ground black pepper
2 ounces Parmigiano-Reggiano, finely grated (about 1