Foryoueats: Sweet Potato Casserole

Ingredients

• Sweet Potatoes:
• 5 tablespoons unsalted butter, melted
• 5-6 large sweet potatoes
• 3 large eggs, room temperature
• 2 tablespoons dark brown sugar, packed
• ½ teaspoon kosher salt
• ½ teaspoon freshly ground black pepper
• 1 teaspoon vanilla extract
• ¼ teaspoon ground nutmeg
• ¼ teaspoon ground cinnamon
• ⅛ teaspoon cayenne pepper
• Marshmallow Meringue:
• 4 egg whites, room temperature
• ½ cup granulated sugar
• ½ teaspoon cream of tartar