Butternut Squash & Sweet Potato Soup

Bahan-bahan (6 porsi)

• 3 tablespoons unsalted butter
• 2 cups roughly chopped yellow onions
• 2 pounds pre-cut butternut squash
• 2 medium sweet potatoes, (peeled and cut into 1-inch (5-cm) chunks (about 1½ lbs/681 g before peeling))
• 8 cups chicken broth
• 1½ teaspoons salt
• ½ teaspoon freshly ground black pepper
• 1 tart yet sweet apple, (such as Fuji or Honeycrisp, cored, peeled, and cut into ½-inch (13-mm) pieces)
• 3 tablespoons honey
• ½ teaspoon ground cinnamon
• ¼ teaspoon ground mace
• ⅛ teaspoon ground nutmeg
• 1 cup heavy cream