Sweet Potato Casserole with Marshmallows

Sweet Potato Casserole Extravaganza: A Decadent Delight

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Get ready to elevate your holiday table with our Sweet Potato Casserole with Marshmallows. This delectable dish strikes the perfect balance between sweet and savory, showcasing the natural richness of sweet potatoes topped with a golden layer of marshmallows. Join us on a culinary adventure as we explore the steps to creating a casserole that’s not just a side dish but a decadent delight.


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Prepare to indulge in the flavors of the season with the following ingredients:

For the Sweet Potato Base:

  • 4 cups mashed sweet potatoes (about 4 medium-sized sweet potatoes)
  • 1/2 cup unsalted butter, melted
  • 1/2 cup brown sugar, packed
  • 1/4 cup milk (whole or evaporated)
  • 2 large eggs, beaten
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • A pinch of salt

For the Marshmallow Topping:

  • 2 cups mini marshmallows

For the Pecan Streusel Topping:

  • 1/2 cup chopped pecans
  • 1/3 cup all-purpose flour
  • 1/3 cup brown sugar, packed
  • 3 tablespoons unsalted butter, melted


1. Sweet Potato Symphony:

  • Preheat your oven to 375°F (190°C).
  • Peel, cube, and boil the sweet potatoes until fork-tender. Mash them in a large mixing bowl.

2. Base Creation:

  • To the mashed sweet potatoes, add melted butter, brown sugar, milk, beaten eggs, vanilla extract, ground cinnamon, ground nutmeg, and a pinch of salt. Mix until smooth and well combined.

3. Casserole Ensemble:

  • Transfer the sweet potato mixture into a greased baking dish, spreading it evenly.

4. Marshmallow Magic:

  • Sprinkle a layer of mini marshmallows over the sweet potato base, ensuring even coverage.

5. Pecan Streusel Sonata:

  • In a separate bowl, combine chopped pecans, all-purpose flour, brown sugar, and melted butter to create the streusel topping. Sprinkle this mixture over the marshmallow layer.

6. Baking Bliss:

  • Bake in the preheated oven for 25-30 minutes or until the marshmallows are golden brown, and the streusel topping is crisp.

7. Marshmallow Finale:

  • For the last 5 minutes of baking, switch to broil to achieve a beautifully toasted marshmallow topping.

8. Serving Elegance:

  • Allow the Sweet Potato Casserole to cool for a few minutes before serving.

Cook Notes and Variations

  • Citrus Zest Zing: Add a hint of citrus zest, such as orange or lemon, to the sweet potato mixture for a refreshing twist.
  • Maple Pecan Magic: Replace brown sugar in the streusel with maple syrup for a delightful maple-pecan flavor infusion.
  • Coconut Crunch: Mix shredded coconut into the streusel for added texture and a hint of tropical sweetness.
  • Candied Ginger Surprise: Incorporate finely chopped candied ginger into the sweet potato base for a spicy kick.

Frequently Asked Questions (FAQs)

Q: Can I use canned sweet potatoes for this recipe?

A: While fresh sweet potatoes are recommended for optimal flavor and texture, canned sweet potatoes can be used as a time-saving alternative.


Q: How can I make this dish ahead of time?

A: Prepare the sweet potato base and assemble the casserole without adding the marshmallows and streusel topping. Cover and refrigerate. Before serving, add the toppings and bake.

Q: Can I use large marshmallows instead of mini marshmallows?

A: Yes, you can use large marshmallows, but consider cutting them in half for even distribution and better coverage.

Q: Can I omit the pecans in the streusel for a nut-free version?

A: Absolutely! You can omit the pecans or replace them with a nut-free alternative like oats.

Keto and Low-Carb Versions

Keto-Friendly Adaptations:

  • Substitute sweet potatoes with mashed cauliflower or a blend of cauliflower and pumpkin for a low-carb alternative.
  • Replace brown sugar with a sugar substitute such as erythritol or monk fruit sweetener.

Low-Carb Variations:

  • Use a combination of steamed and mashed cauliflower and pumpkin to reduce the carb content.
  • Opt for a low-carb nut or seed streusel topping using almond flour or sunflower seed flour.

Cauliflower Comfort:

  • Integrate mashed cauliflower as the base and top with a sugar-free marshmallow alternative.

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A Sweet Finale to Any Feast

In conclusion, the Sweet Potato Casserole with Marshmallows is more than a side dish; it’s a sweet finale to any feast. The velvety sweet potato base, gooey marshmallow topping, and crunchy pecan streusel create a harmony of flavors and textures that will have everyone coming back for seconds.


So, bring the warmth of this delightful casserole to your table and savor the sweetness of the season. Whether it’s a holiday gathering or a weeknight treat, this dish is sure to become a cherished favorite. Enjoy the decadence of Sweet Potato Casserole with Marshmallows!

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