Spinach Gratin

Name: Spinach Gratin
Ingredients: 4 Tbsp. (1/2 stick) unsalted butter; 4 c. chopped yellow onions (2 large); 1/4 c. flour; 1/4 tsp. grated nutmeg; 1 c. heavy cream; 2 c. milk; 3 lb. frozen chopped spinach, defrosted (five 10 oz. pkg.); 1 c. freshly grated Parmesan cheese; 1 Tbsp. kosher salt; 1/2 tsp. freshly ground black pepper; 1/2 c. grated Gruyere cheese

11 ingredients

11 steps

Ingredients

4 Tbsp. (1/2 stick) unsalted butter
4 c. chopped yellow onions (2 large)
1/4 c. flour
1/4 tsp. grated nutmeg
1 c. heavy cream
2 c. milk
3 lb. frozen chopped spinach, defrosted (five 10 oz. pkg.)
1 c. freshly grated Parmesan cheese
1 Tbsp. kosher salt
1/2 tsp. freshly ground black pepper
1/2 c. grated Gruyere cheese

Directions

1

Preheat the oven to 425°.
2

Melt the butter in a heavy-bottomed saut pan over medium heat.
3

Add the onions and saut until translucent, about 15 minutes.
4

Add the flour and nutmeg and cook, stirring for 2 more minutes.
5

Add the cream and milk and cook until thickened.
6

Squeeze as much liquid as possible from the spinach and add the spinach to the sauce.
7

Add 1/2 cup of the Parmesan cheese and mix well.
8

Season to taste with salt and pepper.
9

Transfer the spinach mixture to a baking dish and sprinkle the remaining 1/2 cup Parmesan and the Gruyere on top.
10

Bake for 20 minutes until hot and bubbly.
11

Serve hot.