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    Home » Recipes » Ingredient » Sweet Potatoes

    Make Ahead Sweet Potato Casserole with Marshmallows

    [published_or_updated] · by Angela Paris · 5 Comments[affiliate_disclosure]

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    With toasted, caramelized marshmallows on top, this sweet potato casserole is the sweet and savory side dish you didn't know you needed - even if it's not Thanksgiving!
    Total Time 40 minutes minutes
    Jump to Recipe Add to Favorites Go to Collections

    Make Ahead Sweet Potato Casserole with Marshmallows is the homey side dish everyone loves. With this easy recipe, you don't have to wait until the holidays to make it!

    Close up of spoonful of sweet potato casserole with pecans.
    Homemade Sweet Potato Casserole for Thanksgiving

    Looking for Kid Friendly Sweet Potato Recipes? We've got dozens, check it out!

    Jump to:
    • Ingredients
    • Storage
    • More Sweet Potato Recipes
    • More Side Dish Recipes
    • Make Ahead Sweet Potato Casserole with Marshmallows
    • Meal Planning
    • 💬 Comments

    Sweet potatoes are a traditional Thanksgiving side, but they take time that you might not have on the big day.

    That's where my Make-Ahead Sweet Potato Casserole with Marshmallows comes in - it will save you time and oven real estate! They only take 15 minutes in the oven on Thanksgiving day.

    It's a creamy, delicious side dish that your kids won't fuss about. There's nothing better than that!

    Ingredients to make sweet potato casserole with marshmallows. Image has text overlay.

    Ingredients

    • Sweet Potatoes: Choose firm sweet potatoes that are consistent in color and have smooth skin. Peel and chop into even pieces before starting.
    • Brown Sugar: Light or dark brown sugar both work in this recipe. If you prefer, you can also substitute an equal amount of maple syrup.
    • Butter: Use salted butter.
    • Vanilla Extract: Be sure to use pure vanilla extract for the best flavor.
    • Pumpkin Pie Spice: This contains a blend of warm spices, including cinnamon, nutmeg, ginger, allspice, and cloves, which perfectly complements the sweet potatoes.
    • Pecans: If you have an extra 5 minutes, put the chopped nuts into a dry skillet over medium heat and toast. This enhances the flavor of the nuts. Substitute walnuts if you prefer.
    • Mini Marshmallows: Class sweet potato casserole always includes mini marshmallows. You can use less, or skip them if you like.
    Flatlay of sweet potato casserole in a baking dish next to a small bowl of pecans.
    Roasted Sweet Potatoes
    My Maple Roasted Sweet Potatoes are a classic Autumn side, and perfect for Thanksgiving.
    Get the Recipe >>>

    Storage

    Leftover sweet potato casserole should be stored in an airtight container in the fridge. It's best eaten within 2-3 days.  (These are my favorite airtight containers.)

    Reheat individual portions in the microwave in 30-second intervals until warmed through.

    Close up of sweet potato casserole with pecans in a bowl with a spoon.
    While it's perfect for your Thanksgiving table, this classic side dish is delicious anytime.

    More Sweet Potato Recipes

    We really love sweet potatoes around here! From maple roasted sweet potatoes to sweet potato soup, sweet potato quiche, sweet potato pie, and so many more recipes - sweet potatoes are just such a versatile ingredient!

    Make Ahead Sweet Potatoes with Brown Sugar

    This recipe for Make Ahead Sweet Potatoes with Brown Sugar is our most popular side dish! Readers just love how easy these are to make, and how delicious they taste.

    • Close up of a sweet potato roll.
    • Close up of mashed sweet potatoes.
    See more Sweet Potatoes →

    More Side Dish Recipes

    If you're looking for another side dish for your holiday table besides cranberry sauce, try one of these delicious recipes:

    • roasted acorn squash
    • candied sweet potatoes
    • brown sugar mashed sweet potatoes 
    • red skinned mashed potatoes
    • easy green bean casserole without mushrooms

    And for dessert, you'll love our Sweet Potato Pound Cake!

    Close up of spoonful of sweet potato casserole with pecans.

    Make Ahead Sweet Potato Casserole with Marshmallows

    With toasted, caramelized marshmallows on top, this sweet potato casserole is the sweet and savory side dish you didn't know you needed - even if it's not Thanksgiving!
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    Course: Side Dish
    Cuisine: American
    Keyword: Make Ahead Sweet Potato Casserole
    Prep Time: 10 minutes minutes
    Cook Time: 30 minutes minutes
    Total Time: 40 minutes minutes
    Servings: 16
    Calories: 170kcal
    Author: Ang Paris

    As an Amazon Associate, I earn from qualifying purchases.

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    Ingredients

    • 2 ½ lbs sweet potatoes peeled and cut into 1-inch cubes - about 6-8 medium-sized sweet potatoes
    • ¾ cup light brown sugar packed
    • 4 tablespoons unsalted butter half of one stick or ¼ cup softened
    • 1 teaspoon vanilla extract
    • 1-½ teaspoon pumpkin pie spice
    • pinch salt
    • ½ cup pecans or walnuts chopped, divided (optional)
    • 2 cups mini marshmallows
    Get Recipe Ingredients

    Instructions

    • Preheat the oven to 350-degrees F.
    • Butter a casserole dish then set aside.
    • In a pot, add the water and the sweet potatoes.
      2 ½ lbs sweet potatoes
    • Bring the sweet potatoes to a boil, then cover.
    • Note: you do NOT have to cover the sweet potatoes in water. As long as you keep the cover on, the water will steam the potatoes, and will be fork tender in no time!
    • Simmer the potatoes with the cover on for about 20 minutes, or until the potatoes are tender enough to mash.
    • Drain the potatoes and allow them to cool slightly.
    • Add the butter to a large bowl. (I like to use my mixer and the paddle attachment to mash the potatoes and mix all the ingredients together. However, you can mash them by hand with a potato masher or hand mixer if you like.)
      4 tablespoons unsalted butter
    • Add the sweet potatoes to the bowl. The warmth from the potatoes will help melt the butter.
    • Add the brown sugar, vanilla extract, cinnamon, nutmeg, salt, and ¼ of the chopped nuts. Reserve the rest of the nuts for later.
      ¾ cup light brown sugar, 1 teaspoon vanilla extract, 1-½ teaspoon pumpkin pie spice, pinch salt
    • Mix all the ingredients together until the potatoes reach your desired consistency.
    • Spoon the mixture into the prepared casserole dish. If you are making this ahead of time, STOP here and see the make-ahead instructions below.
    • Top the sweet potatoes with the remaining chopped nuts and mini marshmallows.
      ½ cup pecans or walnuts, 2 cups mini marshmallows
    • Bake for 15 minutes or until the mini marshmallows are toasted.

    Equipment

    • Stand Mixer
    • Cutting Board
    • Santoku Knife
    • Large Mixing Bowl
    • 9x13 Baking dish

    Notes

    Ang's Tips
    If the mashed sweet potato mixture is too thick, add a little bit of heavy cream, milk, or orange juice to thin them out.
    How can you make sweet potato casserole ahead of time?
    This recipe can be made 1 day in advance, which I love! Here's how:
    1. Allow the sweet potato mixture to cool.
    2. Add the spices and mix well.
    3. Place the sweet potato mixture in the casserole dish and cover with cling wrap or foil.
    4. Place it in the refrigerator until the next day.
    5. The next day, bring the casserole dish to room temperature.
    6. Next, top the sweet potato mixture with pecans and mini marshmallows.
    7. Bake for about 15-20 minutes in the oven until the marshmallows are toasty and the casserole is heated through.

    Nutrition

    Calories: 170kcal | Carbohydrates: 30g | Protein: 2g | Fat: 5g | Saturated Fat: 2g | Cholesterol: 8mg | Sodium: 47mg | Potassium: 267mg | Fiber: 2g | Sugar: 17g | Vitamin A: 10142IU | Vitamin C: 2mg | Calcium: 33mg | Iron: 1mg
    Please Note: I am not a registered dietician. Any nutritional data I provide is an approximation and actual dietary information can vary based on ingredients and portion sizes.
    Tried this recipe? Pin It for Later!Mention @jugglingactmama or tag #jugglingactmama!

    Meal Planning

    Want to add this recipe to your meal plan? Download our free printable meal plan here.

    Meal Plan 44 square collage image with text overlay.

    This recipe is included in Meal Plan 44 along with:

    • chicken hashbrown casserole
    • bourbon chicken
    • slow cooker potato soup
    • chicken tenders
    • Italian sausage pasta
    • pancake bundt cake
    • slow cooker taco beef

    ... and more!

    Be sure to check out all our meal plan ideas here.

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    Reader Interactions

    Comments

    1. Caroline says

      November 15, 2021 at 5:58 pm

      Hi! Thanks for sharing the recipe. I work the day before thanksgiving at the hospital. Could i make this as head two days before thanksgiving instead of one day? Thanks!

      Reply
      • Ang Paris says

        November 16, 2021 at 12:21 pm

        Hi Caroline! Yes, you could make this two days before. Enjoy!!

        Reply
        • Caroline says

          November 23, 2021 at 2:01 pm

          Wonderful thank you!

          Reply
    2. Vicki says

      November 20, 2023 at 3:35 pm

      What is the best size pan to bake these in?

      Reply
      • Angela Paris says

        November 29, 2023 at 12:58 pm

        Hi Vicki, this recipe is ideal for a 9x12 or 9x13 baking dish. You can halve the recipe for a smaller casserole. Enjoy!

        Reply

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