Mashed Butternut Squash

Bahan-bahan (4 porsi)

• 1 butternut squash (4 to 5 pounds)
• ⅓ cup butter (divided, melted)
• 2 tablespoons brown sugar (optional)
• ¼ teaspoon pumpkin pie spice (or cinnamon)
• salt and pepper to taste
• ¼ cup light cream