Ingredients
4T butter
4 c chopped onion (2 large)
1/4 cup flour 1/4 t nutmeg
I c heavy cream
2 c milk
5 10-oz packages frozen spinach
1 cup parmesan
1T kosher salt 1/2 t pepper
1/2 c gruyere
Preparation
Preheat oven to 450°. Melt butter in heavy skillet over medium heat. Add onion and sauté until transparent. Add flour, nutmeg, and cook for 2 more minutes. Now add cream and milk and cook until thickened. Squeeze water out of spinach and add to sauce with 1/2 cup parmesan. Season with salt and pepper. Transfer spinach to baking dish and sprinkle with remaining parmesan and gruyere. Bake 20 minutes or until bubbly. Serve immediately.
