Marshmallow pecan sweet potato has been a star on my holiday table for as long as I can remember. My mom always made a version of this sweet potato dish with marshmallows and pecans, and the scent of cinnamon and toasted sugar filling the kitchen instantly meant comfort and celebration. I love how the creamy, earthy sweet potato base perfectly contrasts with that irresistibly gooey, crunchy topping. It’s a side dish that truly brings everyone together. Let’s get cooking!
Why You’ll Love This Marshmallow Pecan Sweet Potato Casserole
Get ready to fall in love with this incredible side dish. It’s more than just a casserole; it’s a hug in a baking dish!
- The perfect balance of sweet and savory flavors
- Incredibly creamy mashed sweet potato base
- A delightful crunchy pecan and gooey marshmallow topping
- This sweet potato casserole with marshmallows and pecans is incredibly easy to make
- It’s a crowd-pleaser that will disappear fast!
- Adds a beautiful touch of color and festivity to any meal
- This pecan marshmallow sweet potato bake pairs wonderfully with roasted meats
- A comforting and nostalgic dish perfect for holidays and family dinners
Ingredients for Marshmallow Pecan Sweet Potato Casserole
Gather these simple Marshmallow pecan sweet potatoingredients to create your delicious sweet potato dish with marshmallows and pecans. The creamy base and crunchy topping come together beautifully!

- 3 cups mashed sweet potatoes – ensure they are smooth for the best texture
- 3/4 cup granulated sugar – this sweetens the base
- 1/2 cup whole milk – adds creaminess to the sweet potato mixture
- 1 stick unsalted butter, melted – for richness in the base
- 2 large eggs, well beaten – these bind everything together
- 1 teaspoon pure vanilla extract – enhances the sweet flavors
- 1/2 stick unsalted butter, melted (for topping) – this creates the base for our crispy topping
- 1/2 cup brown sugar – provides that classic caramel note for the topping
- 1/2 cup all-purpose flour – helps thicken the topping
- 1/3 cup whole milk (for topping) – for a gooey, spreadable topping
- 1/2 cup chopped pecans – adds a wonderful nutty crunch to this pecan marshmallow sweet potato bake
- 1 cup mini marshmallows – these get delightfully gooey and toasted
How to Make Marshmallow Pecan Sweet Potato Casserole
Creating this delightful sweet potato casserole with marshmallows and pecans is surprisingly straightforward Marshmallow pecan sweet potato. Follow these simple steps for a perfect bake every time!
- Step 1: Begin by preheating your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish. This ensures your casserole won’t stick and develops a lovely golden crust.
- Step 2: In a large mixing bowl, combine the 3 cups mashed sweet potatoes, 3/4 cup granulated sugar, 1/2 cup whole milk, 1 stick unsalted butter, melted, 2 large eggs, well beaten, and 1 teaspoon pure vanilla extract. Beat everything together until it’s wonderfully smooth and creamy.
- Step 3: Pour the sweet potato mixture into your prepared baking dish and spread it out evenly. This forms the luscious base for our casserole.
- Step 4: Now, let’s prepare the irresistible topping. In a separate medium bowl, whisk together the 1/2 stick unsalted butter, melted, 1/2 cup brown sugar, 1/2 cup all-purpose flour, and 1/3 cup whole milk until you have a cohesive mixture.
- Step 5: Gently fold in the 1/2 cup chopped pecans and the 1 cup mini marshmallows into the topping mixture. You want to distribute them evenly for that signature crunch and gooeyness in every bite of your pecan marshmallow sweet potato bake.
- Step 6: Spoon this delightful topping evenly over the sweet potato layer. Make sure to cover the entire surface for a beautiful presentation and consistent flavor.
- Step 7: Place the dish in the preheated oven and bake for 30 to 40 minutes. You’re looking for the topping to be golden brown and the edges of the casserole to be delightfully bubbly. The aroma filling your kitchen will be heavenly!
- Step 8: Once baked to perfection, carefully remove the casserole from the oven. Let it cool slightly for about 10-15 minutes before serving. This allows the topping to set a bit, making it easier to serve and enjoy that perfect combination of textures.

Pro Tips for the Best Marshmallow Pecan Sweet Potato Casserole
Want to elevate your sweet potato game? These simple tips will ensure your marshmallow pecan sweet potato casserole is a showstopper every time. I’ve learned these tricks through many holiday seasons!
- For the creamiest base, make sure your mashed sweet potatoes are completely smooth. A ricer or food mill works wonders, or just mash them really well!
- Don’t overmix the topping ingredients; you want to maintain some texture from the pecans and marshmallows.
- For an extra toasted marshmallow flavor, you can briefly broil the casserole for the last minute or two, watching it very closely so it doesn’t burn.
- Ensure your sweet potatoes are cooked until very tender before mashing to avoid any stringiness or chunks.
What’s the secret to perfect Marshmallow Pecan Sweet Potato Casserole?
The secret lies in the balance of textures and flavors. Ensuring your sweet potato base is perfectly smooth and creamy, combined with a topping that gets delightfully crispy and gooey, is key to a fantastic pecan marshmallow sweet potato bake.
Can I make Marshmallow Pecan Sweet Potato Casserole ahead of time?
Absolutely! You can prepare the sweet potato base and the topping mixture separately up to 24 hours in advance. Store them covered in the refrigerator. Assemble and bake just before serving, adding a few extra minutes to the bake time if the mixture is cold.
How do I avoid common mistakes with Marshmallow Pecan Sweet Potato Casserole?
A common pitfall is having a dry sweet potato base; ensure you use enough milk and butter. Also, avoid overbaking, which can make the marshmallows too hard or burnt. Keep an eye on it during the last 10 minutes of baking.
Best Ways to Serve Marshmallow Pecan Sweet Potato Casserole
This delightful marshmallow pecan sweet potato casserole is so versatile, it pairs beautifully with a wide array of main dishes. For a classic holiday feast, serve it alongside roasted turkey or ham. The sweetness of the casserole complements the savory meats wonderfully. It also makes a fantastic side for a simple weeknight roast chicken or pork tenderloin, adding a touch of festive flair to any meal. Think of it as the perfect sweet counterpoint to rich, savory flavors, making any meal feel special. For more ideas on delicious pairings, check out these best jerk chicken sides.
Nutrition Facts for Marshmallow Pecan Sweet Potato Casserole
This sweet potato dish with marshmallows and pecans is a decadent treat, perfect for special occasions. Here’s a general idea of what you can expect per serving (based on 1/10th of the casserole):
- Calories: Approximately 450-500
- Fat: Approximately 20-25g
- Saturated Fat: Approximately 10-12g
- Protein: Approximately 5-7g
- Carbohydrates: Approximately 60-70g
- Fiber: Approximately 3-5g
- Sugar: Approximately 40-50g
- Sodium: Approximately 100-150mg
Nutritional values are estimates and may vary based on specific ingredients used in your Thanksgiving sweet potato casserole marshmallow pecan preparation. For more information on general nutritional guidelines, you can refer to resources like the National Library of Medicine.
How to Store and Reheat Marshmallow Pecan Sweet Potato Casserole
Don’t let any of this deliciousness go to waste! Properly storing and reheating your marshmallow pecan sweet potato casserole ensures you can enjoy it for days to come. Once baked, let the casserole cool completely on a wire rack. This is crucial to prevent condensation, which can make the topping soggy. After it’s cooled, you can cover it tightly with plastic wrap or transfer it to an airtight container. It should keep well in the refrigerator for about 3 to 4 days.
If you need to store it for longer, freezing is a great option for this sweet potato dish with marshmallows and pecans. It’s best to freeze the casserole before adding the marshmallow and pecan topping, if possible, or freeze individual portions. Wrap portions tightly in plastic wrap, then in aluminum foil or place them in a freezer-safe container. It can be stored in the freezer for up to 3 months. When you’re ready to enjoy, thaw it overnight in the refrigerator. For reheating, you can gently warm individual portions in the microwave or reheat the entire casserole in a 300°F (150°C) oven for about 20-30 minutes, or until heated through. If reheating from frozen, add extra time. For more tips on freezing and reheating, check out these last recipes.
Frequently Asked Questions About Marshmallow Pecan Sweet Potato Casserole
Can I use canned sweet potatoes for this recipe?
While I always recommend using fresh sweet potatoes for the best flavor and texture in my marshmallow pecan sweet potato casserole, you can use canned mashed sweet potatoes in a pinch. Just be sure to drain them very well to avoid a watery base. You might need to adjust the sugar slightly depending on the sweetness of the canned variety.
What part of the sweet potato casserole should I store for leftovers?
You can store the entire leftover sweet potato casserole with marshmallows and pecans in the refrigerator for up to 4 days. Make sure it has cooled completely before covering it tightly with plastic wrap or foil. Reheat gently in the oven or microwave until warmed through.
Can I make this a vegan or dairy-free marshmallow pecan sweet potato bake?
Yes, you can definitely adapt this recipe! For a dairy-free version, substitute the whole milk with your favorite non-dairy milk (like almond or oat milk) and use a dairy-free butter substitute. For a vegan option, you’ll also need to swap out the eggs. A common substitute is a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water, let sit for 5 minutes) or a commercial egg replacer. This makes your holiday sweet potato casserole pecans marshmallows accessible to more people! Learn more about carnivore diet recipes for alternative dietary approaches.
Why is my marshmallow topping not toasting properly?
Sometimes the marshmallows can take a bit longer to toast, especially if they are very fresh. If your casserole is done but the marshmallows aren’t golden, you can carefully place it under the broiler for 1-2 minutes, watching it *very* closely to prevent burning. This gives that beautiful caramelized finish to your pecan marshmallow sweet potato bake.
Variations of Marshmallow Pecan Sweet Potato Casserole You Can Try
This classic marshmallow pecan sweet potato casserole is so beloved, but there are fun ways to switch it up! Whether you have dietary needs or just want a new flavor profile, these variations will keep things exciting.
- Dairy-Free Delight: Easily make this a dairy-free treat by swapping the whole milk for unsweetened almond or oat milk and using a plant-based butter substitute. This ensures everyone can enjoy a delicious sweet potato dish with marshmallows and pecans.
- Spiced Pecan & Cranberry Twist: For a festive flavor boost, add a tablespoon of cinnamon and a pinch of nutmeg to the sweet potato base. Stir in about 1/2 cup of fresh or dried cranberries along with the pecans for a tart counterpoint in your pecan marshmallow sweet potato bake.
- Maple-Bourbon Glaze: Elevate the topping by substituting half the brown sugar with maple syrup and adding a tablespoon of bourbon (optional, of course!). This adds a sophisticated depth to your holiday sweet potato casserole pecans marshmallows.
- Air Fryer Magic: For a quicker cook time and a perfectly crispy top, try assembling this in an oven-safe dish suitable for your air fryer. Cook at around 320°F (160°C) for 15-20 minutes, checking for doneness and topping crispness.
Marshmallow Pecan Sweet Potato: 1 Amazing Casserole
- Total Time: 1 hour 40 minutes
- Yield: 10 to 12 servings 1x
- Diet: Vegetarian
Description
This Marshmallow Pecan Sweet Potato Casserole is a comforting, sweet-and-nutty side dish that combines creamy mashed sweet potatoes with a crunchy pecan-marshmallow topping. It’s a perfect balance of smooth and crispy, ideal for holidays or cozy family dinners.
Ingredients
- 3 cups mashed sweet potatoes
- 3/4 cup granulated sugar
- 1/2 cup whole milk
- 1 stick unsalted butter, melted
- 2 large eggs, well beaten
- 1 teaspoon pure vanilla extract
- 1/2 stick unsalted butter, melted (for topping)
- 1/2 cup brown sugar
- 1/2 cup all-purpose flour
- 1/3 cup whole milk (for topping)
- 1/2 cup chopped pecans
- 1 cup mini marshmallows
Instructions
- Preheat the oven to 350°F (175°C).
- In a mixing bowl, beat together the mashed sweet potatoes, granulated sugar, milk, melted butter, beaten eggs, and vanilla extract until smooth.
- Grease a 9×13-inch (or similar) baking dish and spread the sweet potato mixture evenly inside.
- In a medium bowl, combine the melted butter, brown sugar, flour, and milk until well mixed.
- Fold in the chopped pecans and mini marshmallows into the topping mixture.
- Spread the topping evenly over the sweet potato layer.
- Bake for 30 to 40 minutes, until golden brown on top and bubbly around the edges.
- Let cool slightly before serving to allow the topping to set.
Notes
- Use standard orange-fleshed sweet potatoes for best flavor and color.
- You can prepare this dish a few hours in advance and refrigerate before baking.
- Non-dairy milk can be substituted, though texture may slightly vary.
- Regular marshmallows chopped into pieces can substitute mini marshmallows.
- Freeze only the sweet potato base if needed; add topping fresh before baking.
- Prep Time: 60 minutes
- Cook Time: 30-40 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1/10th of casserole
- Calories: Approximately 450-500
- Sugar: Approximately 40-50g
- Sodium: Approximately 100-150mg
- Fat: Approximately 20-25g
- Saturated Fat: Approximately 10-12g
- Unsaturated Fat: Approximately 10-13g
- Trans Fat: Approximately 0g
- Carbohydrates: Approximately 60-70g
- Fiber: Approximately 3-5g
- Protein: Approximately 5-7g
- Cholesterol: Approximately 100-120mg
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