Browned Butter Sweet Potato Casserole

Published November 16, 2015. Updated March 11, 2020

This post may contain affiliate links. Read our disclosure policy.

Sweet Potato Casserole – a classic fall recipe upgraded with rich browned butter!

Buttery mashed sweet potatoes are topped with crisp cornflakes and melty marshmallows and toasted. It must try side dish!

Sweet Potato in a white casserole dish. One scoop is removed to show sweet potato layer. It's topped with rows of crushed cornflakes and pecans then alternating rows of mini marshmallows.

A Must Have Sweet Potato Casserole Recipe!

This sweet potato dish has the best of everything and just the right amount of contrast with it’s creamy sweet potatoes, gooey melty marshmallows and that finishing crisp you get from the cornflakes and crunchy pecans.

Simply put this casserole is heavenly!

Who know the word casserole and heavenly could ever go together in the same sentence but it just does with this one. Try it and see for yourself! It might just become a family favorite for your family too!

Single serving of sweet potato casserole being scooped onto a white serving plate.

Can I Make This Ahead of Time?

For make ahead you can prepare the sweet potato portion the day before and refrigerate but wait until the following day to add the butter to the topping and wait to add the topping to the casserole until you’re just ready to bake and serve so it doesn’t go stale.

Showing how to make sweet potato casserole. Staring by baking sweet potatoes.

How to Make Browned Butter Sweet Potato Casserole

  • Bake the sweet potatoes until tender and mash.

Mashing sweet potatoes in a mixing bowl.

  • Brown the butter in a saucepan.
  • Add to sweet potatoes along with sugars and salt and mix.

Adding sugars, salt and melted browned butter to sweet potatoes in mixing bowl.

  • Blend in milk and eggs.

Adding eggs and milk to sweet potatoes in mixing bowl.

  • Spread mixture into an even layer in a 13 by 9-inch baking dish.

Spreading sweet potatoes into an even layer in baking dish.

  • Mix cornflakes, pecans, and melted butter and brown sugar.

Making cornflake pecan topping for sweet potato casserole.

  • Spread mixture into rows over sweet potatoes. Bake 30 minutes.

Spreading topping into rows over sweet potatoes layer.

  • Remove from oven, cool 5 minutes add marshmallows between cornflake rows and bake 5 – 10 minutes.

Adding mini marshmallows to sweet potato casserole in rows.

More Holiday Recipes You’ll Love!

16 Quick & Easy 30 Minute Recipes! (plus weekly recipe updates)

5 from 10 votes

Browned Butter Sweet Potato Casserole

Sweet Potato Casserole - with browned butter! A perfectly buttery and sweet layer of mashed potato potato is topped with crisp cornflakes and melty marshmallows. It's the perfect side dish in the fall and during the holidays!
Servings: 12
Prep30 minutes
Cook1 hour 40 minutes
Ready in: 2 hours 10 minutes

Ingredients

Sweet Potatoes

Topping

  • 2 cups (128g) crushed corn flakes*
  • 1/2 cup (54g) chopped pecans
  • 1/4 cup (55g) packed light-brown sugar
  • 3 Tbsp (42g) salted butter, diced into 1-inch pieces
  • 3 cups (148g) miniature marshmallows

Instructions

  • Preheat oven to 400 degrees. Pierce each sweet potato several times with a fork and transfer to a rimmed cookie sheet. Bake about 1 hour, or until very tender when pierced with a fork.
  • Meanwhile melt 1/2 cup butter in a medium saucepan over medium heat and allow to brown, swirling pan occasionally.
  • Remove potatoes from oven and reduce oven temperature to 350. Cut each in half and scoop out flesh into a large mixing bowl. Mash potatoes with a potato masher.
  • Pour in 1/2 cup browned butter, using a rubber spatula to scrape excess butter from pan, add granulated sugar, 1/4 cup light-brown sugar and salt then using an electric hand mixer set on low speed, blend together until well combine. 
  • Add in eggs and mix until well blended, then pour in milk and mix until well blended. Pour mixture into a buttered 13 x 9 baking dish and spread into an even layer.
  • Brown remaining 3 Tbsp butter in a saucepan. Pour crushed cornflakes into a mixing bowl, along with chopped pecans and 1/4 cup light-brown sugar and mix to combine. Pour browned butter over mixture and toss to evenly coat. 
  • Spread mixture into diagonal rows over mashed sweet potato mixture leaving about a 1 1/2-inch gap between rows. Bake in preheated oven (350 degrees) for 30 minutes (if it's browning too much near the end you can tent with foil if needed).
  • Remove from oven and rest 5 minutes, then spread marshmallows between rows of corn flake topping. Return to oven and bake until marshmallows are melty and lightly golden if desired about 5 - 10 minutes. Serve warm.

Notes

  • *Begin with about 4 1/2 cups cornflakes and crush to 2 cups.
  • Note that if you are making this in advance to refrigerate then bake the following day, don't add the corn flake topping until baking or it will become stale. Also I'd recommend placing cold casserole in cool oven and let it preheat with oven.
Nutrition Facts
Browned Butter Sweet Potato Casserole
Amount Per Serving
Calories 451 Calories from Fat 135
% Daily Value*
Fat 15g23%
Saturated Fat 7g44%
Cholesterol 69mg23%
Sodium 353mg15%
Potassium 709mg20%
Carbohydrates 75g25%
Fiber 6g25%
Sugar 34g38%
Protein 4g8%
Vitamin A 27395IU548%
Vitamin C 6.8mg8%
Calcium 85mg9%
Iron 4.6mg26%
* Percent Daily Values are based on a 2000 calorie diet.
Nutrition values are estimates only. See full disclaimer here.

Leave a Comment

Rate this recipe




This site uses Akismet to reduce spam. Learn how your comment data is processed.

73 Comments

  • SaraLily

    Oh gosh, this looks too pretty to eat!!! What a lovely casserole. Bet it tastes spectacular too!

  • Amy

    Just wanted to comment to say that this recipe has become a staple on our Thanksgiving table the past two years – and everyone loves it! It’s the best of both worlds with both the marshmallows and corn flake topping – very clever. Thanks for the great recipe!

  • Janet

    My sister made a good recommendation-because everyone loves the topping so much, she puts a layer of the pecan mixture in the middle of the potatoes!

  • Kim

    I made this for Friendsgiving with 11 of my lady friends and they LOVED it! Something for everyone and gorgeous presentation. I followed the tips for prepping the night before and it came out BEAUTIFULLY! Thanks for the recipe!! This is definitely a KEEPER :-)

  • Zipora

    Looks amazingly delicious. Could you please let me know how to reduce the ingredients to serve 8.
    Also could I use chopped hazelnuts. My grandson is allergic to tree nuts.

    • Jaclyn

      Jaclyn Bell

      Yes you’d be fine to use the hazelnuts instead, and I would just cut everything back to 2/3 the original amount and probably bake in an 11 by 7 inch dish. I hope you love it!

  • Thanksgiving in France! | An American in France

    […] potatoes are one of the easiest things to make. Browned Butter Sweet Potato Casserole – I made this recipe twice (we celebrated two different Thanksgiving meals last week). With my in-laws I didn’t […]

  • Melissa

    Oh. My. Gosh. This was AWESOME. I wasn’t even going to make a sweet potato dish this year, because neither my sister nor my boyfriend really care for yams (weirdos), but upon my mom’s insistence, I found your recipe and set to work. Let me just say that EVERYONE, my sister and boyfriend included, absolutely LOVED this! My boyfriend actually said this was one of the best things he’d ever eaten! Thank you sooo much. This will definitely become an annual Thanksgiving dish. :)

    • Jaclyn

      Jaclyn Bell

      So happy to get that great review of this recipe Melissa :)! I hope you and your loved ones had such a great Thanksgiving! Thanks for your comment!

  • Leonor Hernandez

    I served this today at the PotLuck we had this afternoon for our newly opened Extra Store. I knew I would need to bring something extra special since this would be our first Thanksgiving PotLuck at our new location. Wow this dish really exceeded my expectations! The compliments were rolling and the eyes were expressing such bliss, it was the talk of the table. Every employee wanted to know the ingredients so, I will be leaving your website info our breakroom for tomorrow. Thanks Jacklyn for sharing your truly extra special dish, it made us all very happy, we really enjoyed the two toppings!

    • Jaclyn

      Jaclyn Bell

      I’m so happy to hear everyone enjoyed this sweet potato casserole Leonor! Thanks so much for sharing my site that’s so nice of you:)!