German-Style Creamed Spinach

Ingredients

• 1) Frozen spinach (10-ounce box) – 2 nos. (It should be thawed).
• 2) Unsalted butter - 3 tablespoons.
• 3) Yellow onion (small) - 1 no. (It should be finely diced).
• 4) Kosher salt – to taste.
• 5) Pepper (freshly ground) – to taste.
• 6) Heavy cream - 1 1/2 cups.
• 7) Grated nutmeg - 1/8 teaspoon.
• 8) Aged Gouda cheese - 2 cups (It should be grated).