This easy Sweet Potato Casserole recipe is topped with a brown sugar pecan toppings, and always steals the show on Thanksgiving. Best part is you can be prepared in advance for an easy make-ahead holiday side dish.
Want more Thanksgiving recipes? Try my Easy, No-Fuss Thanksgiving Turkey or Spatchcock Turkey, the Best Homemade Rolls, Cornbread Stuffing, or our Perfect Pie Crust!

Why I love this casserole:
- The Topping – The topping on this casserole is made with butter, pecans, flour, and brown sugar. It's so much better than the marshmallow topping on sweet potato casserole (in my opinion!).
- Make-Ahead – Want a stress-free Thanksgiving day? This whole casserole (as well as more of my Thanksgiving recipes) can be made a day or two in advance. Check out my Make Ahead Instructions at the end of the post for details!
- Crowd Pleaser – This is a HIT with family and friends every single year. The potatoes are creamy, and the topping adds the perfect crunchy texture. It will become a new staple on your Thanksgiving table!
How to make Sweet Potato Casserole:
Cook Sweet Potatoes: Place sweet potatoes in a large pot and add enough water to the pot to cover the potatoes a little more than half way. Cover and bring to a boil, then simmer until fork tender. Drain, and place on a cutting board to cool. Once they are warm enough to handle, remove the skins and place them in a large mixing bowl.

Make Filling: Add eggs, evaporated milk, vanilla, sugar, salt, and butter and mash everything together until smooth. I start with a potato masher, and then use an electric mixer on low speed, for about 45 seconds, to get the mixture smooth (without over-mixing). Smooth into casserole dish.

Add Pecan Topping: Combine the topping ingredients– butter, chopped pecans, flour, and brown sugar–and sprinkle all over the top of your mashed sweet potato mixture.

Bake: Place in the oven and bake for 35-40 minutes. Serve this sweet potato casserole with pecans alongside your favorite Thanksgiving recipes!

Sweet Potato Casserole with Marshmallows:
To add a marshmallow topping instead, simply top the casserole with a layer of miniature marshmallows and bake for about 25 minutes, or until the marshmallows are puffy and browned. You could also prepare this dish half and half with half pecan crumble mixture and half marshmallows. For this method, cook with half of the crumble for about 15 minutes first, then remove from the oven, cover the other half of the casserole with marshmallows and continue baking.
Make Ahead, Storing, and Freezing Instructions:
To Make-Ahead: You can prepare this easy sweet potato casserole recipe 1-2 days in advance. First make the filling and smooth into your baking dish. Make the topping, but store seperatly. Add topping before baking. Here are some other great Make-Ahead Thanksgiving recipes.
To Store: Store sweet potato casserole covered in the refrigerator for 4-5 days.
To Freeze: Prepare the sweet potato casserole completely, but don't bake it. Cover with a double layer of aluminum foil and freeze for up to 3 months. Thaw overnight in the refrigerator. Allow it to come to room temperature for 30 minutes on the counter before baking.
More Thanksgiving Staples:
- Best Homemade Rolls
- Easy, No-Fuss Thanksgiving Turkey
- Broccoli Casserole
- Perfect Mashed Potatoes
- Sausage Cranberry Pecan Stuffing
- Sweet Potato Souffle
- Cranberry Fluff Salad
- Apple Cranberry Fruit Salad
- Triple Berry Pie
- Other pie recipes
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Recipe

Sweet Potato Casserole
Equipment
Ingredients
- 4-5 large sweet potatoes (orange yams)
- 3 large eggs
- 1/2 cup evaporated milk , or substitute cream, or half and half
- 1 teaspoon vanilla extract
- 1/2 cup granulated sugar
- 1/2 teaspoon salt
- 1/4 cup butter , melted
For the topping:*
- 3 Tablespoons butter
- 1/4 cup all-purpose flour
- 1 cup light brown sugar
- 1 cup pecans , chopped
Instructions
- Cook Potatoes: Place the sweet potatoes in a large pot. Add enough water to the pot to cover the potatoes a little more than half way. (You will need at least 3-4 inches of water but the water will not completely cover the potatoes!) Bring the water to a boil and then turn the heat to a medium simmer. Cover and simmer until they feel tender when poked with a fork. It may take 20-40 minutes to cook your sweet potatoes depending on the size of the potatoes, but you don't want them to be mushy.
- Peel Potatoes: Drain water and place sweet potatoes on a plate or cutting board to cool down. Once they are cool enough to handle, peel and discard the skin from the potatoes and place potatoes in a large mixing bowl.
- Mix: Add eggs, evaporated milk, vanilla, sugar, salt, and butter and mash everything together until smooth. I start with a potato masher, and then use an electric mixer on low speed, for about 45 seconds, to get the mixture smooth.
- Pour mixture into a lightly greased casserole dish. Anything around the size of an 8×11'' , 9×13'' or even a deep dish 10'' pie pan will work.
- Make Topping: Add flour, brown sugar and pecans to a mixing bowl. Add butter and cut in with a fork or pastry blender until well combined. Sprinkle topping over sweet potato mixture.
- Bake at 350 degrees F for 35-40 minutes.
- Store leftovers in the refrigerator for 4-5 days.
Notes
Nutrition
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I originally shared this recipe October 2017. Updated November 2019 and November 2023.
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This is my only go to sweet potato casserole recipe. It always gets rave reviews, even from people who don’t LOVE sweet potatoes. Delicious every time.
Jean please let me know which option you went with and how it turned out! I too wondered the same ☺️.
1/2 cup of oats and it was delicious. Perfectly chewy topping with the smooth sweet potato. Highly recommend this recipe- it was a hit at our potluck today!
Best sweet potato casserole I’ve had! Easy to make and the family all loved it!!
Hi. Making this for a potluck at the office. Just wondering if there’s a reason you don’t peel them before boiling?
Omg. The best thing I think I have ever made. I never do this first time making a recipe, but I did not add the 1/2 C sugar, and it was just amazing.
The sweet potatoes will absorb the water and lose their nutrients if peeled before boiling.
I never leave comments but this recipe is too amazing to ignore!
So delicious, the kids kept going back for seconds! This will definitely be on rotation in our household, especially during the winter months!
Delicious! I was wondering if the butter for the topping should be melted or softened before adding to the flour, sugar & pecans. Thanks!
You could do it either way, I scooped out the tater almost like an avocado the first time, second time I ended up leaving them in the pot they were boiled in and then the skins just fell off practically…mucho easier than peeling. No need to leave them in the water to cool, just happened that way. Either way, peel, scoop or skin…potatoe potaatoe 😉
This recipe is delicious! It was a favorite at Thanksgiving this year. Now it’s going to become part of our holiday tradition! Thank you!
Recommend cutting down or eliminating the sugar in the sweet potatoes. Not needed with the topping. Would also be cautious of the amount of eggs and liquid being added to sweet potatoes – made this and it was fairly wet/runny. IMO dont really need the eggs. However this had decent flavor overall but many comments from guests about how overwhelmingly sweet this was.
I sprinkled some cinnamon in and did 1/2 white sugar and 1/2 brown sugar. I also opted for the marshmallows for the topping instead. I threw the mixture into a crockpot and turned it on low in the car for the 3 hour drive to my cousin’s house. Put the marshmallows on and threw it in the oven to melt a little and get toasty on the top before we ate. Big hit! Had 2 people ask me for the recipe. Thank you!
Made this yesterday and it was so delicious.It was like having dessert. Definitely keeping this recipe. First time using sweet potato instead of yams and what a difference with taste. I’m so happy I found your recipe.
I made this for Thanksgiving (with some tweaks) and it was a hit! My family likes sweet potatoes but does not like a lot of sugar. I cut both the granulated sugar and brown sugar in half, doubled the pecans, and added 1/4 tsp of coconut extract. I also baked the sweet potatoes instead of boiling.
The consistency, texture, and flavor was amazing!
Sooo good!! I added some marshmallows on top as requested by my husband. Really good. Thanks for the recipe. Will definitely be a tradition!
MADE THIS YESTERDAY AND THERE ARE NO LEFTOVERS!!! THE ABSOLUTE BEST RECIPE FOR SWEET POTATOES!!!!!! THANK YOU!!!!! EVERYONE LOVED IT!!!!