Place the frozen spinach in a large bowl and pour boiling water over it. Let it sit for about 5 minutes to defrost. Alternatively, you can defrost the spinach in the microwave using the defrost setting.
1 lb frozen spinach
Peel and finely chop the onion and half of a garlic clove.
1 onion, ½ garlic clove
In a medium saucepan over medium heat, melt the butter. Add the chopped onion and garlic, and sauté for about 3–4 minutes until the onions turn soft and translucent.
1 tablespoon flour
Sprinkle the flour over the onions and garlic, and cook for another minute before deglazing with the milk.
¼ cups milk
Add the defrosted spinach and whipping cream. Bring to a gentle boil for 2–3 minutes. Season with nutmeg, salt, and pepper (adjust to taste as needed).
¾ cups whipping cream, nutmeg, salt and pepper to taste
If desired, use an immersion blender to purée the spinach before serving.
This dish pairs well with boiled potatoes and scrambled or fried eggs. You can also serve it with fish fingers or as a side dish with roasted meats.