Creamy Pumpkin Polenta

Bahan-bahan (6 porsi)

• 4 cups water
• 1 teaspoon kosher salt
• 1 cup yellow polenta or medium ground cornmeal
• 2 tablespoons unsalted butter
• 1/2 cup canned or homemade pumpkin puree
• 1/3 cup grated Pecorino Romano
• pinch of nutmeg