Food & Cooking Recipes Dessert & Treats Recipes Sweet Potato Casserole 3.5 (819) 12 Reviews By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on April 9, 2021 Print Share Share Tweet Pin Email Prep Time: 10 mins Total Time: 55 mins Servings: 8 Everyone will ask for seconds of this casserole made with mashed sweet potatoes and a marshmallow topping that's a perfect combination of gooey and crunchy. With the help of a little nutmeg for flavor, this casserole is sure to be a new favorite. Ingredients 3 pounds sweet potatoes (about 8), peeled and cut into 1-inch chunks Coarse salt and ground pepper ½ cup whole milk 4 tablespoons butter ½ teaspoon ground nutmeg 2 cups mini marshmallows or chopped regular marshmallows Directions Preheat oven to 375 degrees. Place sweet potatoes in a large saucepan, and cover with cold water by 1 inch; salt generously. Bring to a boil; reduce to a simmer, and cook until easily pierced with the tip of a paring knife, 15 to 20 minutes. Drain, and return to pan. Heat over medium, stirring, until liquid has evaporated and a thin film covers bottom of pan, about 2 minutes. Remove pan from heat; add milk, butter, and nutmeg. Mash until smooth; season with salt and pepper. Transfer sweet-potato mixture to a 2-quart baking dish. (To make ahead, refrigerate, up to 1 day.) Top casserole with marshmallows; bake until center is warmed through and marshmallows are lightly browned, 15 to 20 minutes. John Kernick Print