Ingredients
- 5 large eggs
- 1 ounce Parmesan cheese
- 1 1/2 ounces Gruyère cheese
- 1 small shallot (about 2 ounces)
- 10 ounces frozen chopped spinach, or 12 ounces baby spinach
- 3 tablespoons unsalted butter, plus more for the baking dish
- 3 tablespoons all-purpose flour
- 1 cup whole or 2% milk
- 1 teaspoon kosher salt
- 1/4 teaspoon freshly ground black pepper
- 1/8 teaspoon freshly grated nutmeg
- Pinch cayenne pepper
- 1/8 teaspoon cream of tartar
Comments