This Sweet Potato Casserole is sweet, comforting, and ridiculously delicious! Topped with buttery sweet pecans and optional mini marshmallows, it’s the ultimate holiday side dish.

overhead view of sweet potato casserole ready to serve with blue spatula

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Why You Will Love This Sweet Potato Casserole

It’s so easy to make! With a few simple steps for the filling and the topping, you’ll be on your way to a delicious sweet potato casserole in no time.
With ten servings, it’s big enough to feed a crowd. If your gathering is on the larger size, this recipe can be easily doubled or tripled.
Top with mini marshmallows for an extra-special treat. Some people prefer their sweet potato casserole with a sweet pecan topping only; others prefer a final layer of gooey marshmallows. Whichever version you prefer, you can make it happen with this recipe!

Ingredients Needed for Sweet Potato Casserole with Marshmallows

Ingredient quantities for this easy sweet potato casserole recipe are located in the recipe card at the end of the post.

Sweet potatoes – these make the recipe totally healthy, right?! 😉
Brown sugar – this recipe uses brown sugar instead of white sugar because brown sugar perfectly enhances the flavor of cooked sweet potatoes 🧡
Heavy whipping cream – this makes the dish extra-rich and creamy!
Vanilla extract
Cinnamon
Butter
All-purpose flour
Pecans – chopped pecans typically come untoasted, which is great for this recipe since they will be toasted during the cooking process
Mini marshmallows – these are optional but highly recommended! They add a fun look to the top of the casserole, and you can’t go wrong with gooey marshmallows mixed into your serving of sweet potatoes 🍠

How To Make Sweet Potato Casserole

The steps below are just a quick overview of how to make the recipe. The full process in detail is located in the recipe card at the end of the post.

First, you’ll cook your chopped and peeled sweet potatoes so they’re nice and soft.

Add cooked sweet potatoes, butter, brown sugar, vanilla extract, and cinnamon to a bowl. Mix well, then mash with a fork or a potato masher.

Add heavy whipping cream. At this point, you can stir in the heavy whipping cream and leave the potatoes textured, or you can use an electric mixer on low to smooth them out.

Add sweet potato mixture to your casserole dish.

In a bowl, combine all topping ingredients except for mini marshmallows.

Not a fan of pecans? You can substitute them with rolled old-fashioned oats (not quick oats), Rice Krispies, or even crushed pretzels for a unique flavor twist. However, you’ll need to watch the casserole carefully during the baking process to make sure the topping doesn’t burn.

Evenly spoon the topping ingredients over the sweet potato mixture and bake.

Optionally top with mini marshmallows and return to the oven for a few minutes until the marshmallows begin to brown.

You can use regular-sized marshmallows (whole or cut into smaller pieces) if you don’t have mini marshmallows on hand.

overhead view of white casserole dish with sweet potato casserole topped with marshmallows removed from the oven and cooling off

Enjoy! This dish tastes incredible.

Easy Thanksgiving Side Dish Recipes

Serving this sweet potato casserole for Thanksgiving and looking for more Thanksgiving-friendly side dish recipes? Try these:

Try this flavorful buffalo chicken dip, a fresh tradition many families are adding to their holiday celebrations. One taste, and you’ll see why it’s a hit! It’s the appetizer that will disappear first at any party, football game day event, or holiday gathering.
Bring a flavor-packed zucchini casserole with garlic and parmesan to your next party or holiday feast—it’s sure to impress!
Create a casserole with yellow squash packed with flavor to wow your guests.
Relish in this easy cranberry sauce that’s both fresh and delicious!
Discover the joy of oven-baked vegetables—a dish you’ll find yourself making again and again.
Smokey and sensational, this bacon and green beans side will be the talk of the dinner table!

overhead view of buffalo chicken dip garnished with green onions and blue cheese crumbles — **Buffalo Chicken Dip**

overhead view of zucchini casserole in glass casserole dish ready to be served — **Buffalo Chicken Dip**

Just look at that sweet gooey deliciousness down there 😍 Your guests will want a second serving of this dish, trust me!

overhead view of bowl of sweet potato casserole topped with marshmallows ready to serve next to white casserole dish

Want to take this sweet potato casserole to the next level? Make it a full-on dessert by serving it with a scoop of vanilla bean ice cream. 🍨

Easy Thanksgiving Desserts

Looking for another sweet treat? Try one of these dessert recipes:

Dive into the holiday spirit with a slice of classic pecan pie, a perennial favorite during Thanksgiving. Its biggest rival? The luscious traditional pumpkin pie. Both make excellent additions to any festive gathering!
Transform your dessert lineup with this pumpkin cheesecake. It’s so good that it’ll change how you and your guests view holiday treats forever!
Start the fall season on a delicious note by adding this irresistibly creamy homemade pumpkin spice latte to your daily routine!
Need a time-saving dessert that doesn’t skimp on flavor? Try this delectable no-bake pumpkin cheesecake recipe.
For those delightful extras, whip up some pumpkin bars with cream cheese or pumpkin cookies with chocolate chips. They’re perfect for savoring around the main holiday feast!
Kick off a new tradition with this pumpkin cheesecake fluff dessert, a sweet treat your guests will clamor for year after year. Ideal as a delightful dip or a post-dinner indulgence.

overhead view of half of baked pecan nut pie in a clear pie dish on a white countertop — **Pecan Pie**

sideview of slice of pumpkin pie with whipped cream on top laying on a white countertop — **Pecan Pie**

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