- 2 cups whole milk
- 2 cups water
- 2 tablespoons unsalted butter
- 2 teaspoons salt
- 1 cup semolina flour (pasta flour)
- 1 (10-ounce) package frozen chopped spinach, thawed, squeezed dry
- 1/2 cup grated Parmesan cheese
- 3 large eggs (whisk in 1 at a time)
- 1/4 teaspoon ground nutmeg
- Salt and pepper
- 1/3 cup grated Parmesan cheese
- Preheat oven to 400°F.
- Butter 11x7x2-inch glass or ceramic baking dish.
- In large saucepan, bring to a boil milk, water, butter, and salt. Reduce heat to medium. Gradually whisk in semolina flour, then whisk until mixture is thick and smooth, about 5 minutes. Whisk in spinach, Parmesan cheese, eggs, nutmeg, salt, and pepper. Pour mixture into prepared baking dish; smooth top and sprinkle with 1/3 cup grated Parmesan cheese.
- Bake gratin until puffed and golden, about 40 minutes. Cool 10 minutes before serving.