Fluffy Sweet Potato Dish

Featured in Cooking Through the Seasons.

Boil or bake sweet potatoes till tender. Whip with eggs, sugar, butter, and vanilla. Bake 25 mins. Add pecan, sugar, flour, and butter topping. Bake again until golden and crunchy.
Hannah Author
Updated on Mon, 21 Apr 2025 17:45:18 GMT
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Every Thanksgiving, I whip up this sweet potato casserole that I discovered by chance years back, and it's turned into the must-have dish my family always expects me to bring. The smooth, creamy sweet potatoes topped with that nutty, crunchy layer creates such a perfect mix that it somehow manages to please everyone - from those who love marshmallows to the purists in our family!

For over 30 years my brother-in-law swore he "couldn't stand sweet potatoes," but after he took an accidental bite during his first Thanksgiving with us, he's been loading up his plate with this casserole ever since!

Ingredients You'll Want

  • Sweet potatoes: Go for fresh ones - pick firm potatoes without any shoots or mushy areas.
  • Vanilla extract: This hidden gem adds wonderful complexity. Try to use genuine vanilla here.
  • Brown sugar: Gives that mouthwatering caramel flavor to the topping.
  • Pecans: The topping's main attraction! Their rich crunch really makes this dish stand out.
  • Butter: Adds richness to both the potato mixture and topping for best taste.
  • Eggs: They make the sweet potato base puff up nicely during baking.
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My Cooking Method

Preparing the Sweet Potatoes

I like to bake my sweet potatoes instead of boiling them - it really brings out their flavor and keeps them from getting too wet. Just clean them thoroughly, stick them a few times with a fork, and bake until they're completely soft.

Mashing Just Right

Once I've scooped out the insides, I use an electric mixer to beat the potatoes until they're silky smooth. It might seem like too much work, but getting that super-smooth texture really changes how the final dish turns out.

Creating the Topping

The streusel topping is what makes this dish shine! I use a fork for mixing instead of my hands to keep it nice and crumbly rather than clumpy. I often make double the topping because everyone fights over it.

Smart Baking Approach

Baking in two stages is crucial - first cooking just the sweet potato mix helps it set properly before adding the topping, which keeps the pecans from getting too dark.

I first tasted something like this at Ruth's Chris Steakhouse years ago and was set on making my own version. After lots of testing (and many happy family taste-testers), this recipe has all the fancy restaurant flavor but it's easy enough for anyone to make at home.

Ways to Serve It

This casserole goes great with turkey and all the classic sides, but it's also fantastic next to a Christmas ham. For big gatherings, I sometimes use a wider, flatter dish to get more of that amazing topping. The next day, try putting leftover casserole in a bowl with some vanilla ice cream on top for an incredible dessert!

Customization Ideas

Throw in a dash of cinnamon or pumpkin pie spice to warm up the sweet potato mix. Add some orange zest for a fresh, bright flavor. Mix pecans with walnuts in the topping for different textures. If you want something less sweet, cut back on sugar and add a tiny bit of chipotle powder.

Prep-Ahead Options

This dish is a real holiday helper! I usually go with option #2 - bake the sweet potato base, put the topping on, then stick it in the fridge overnight. The next day, I just finish baking it while the turkey's resting. This frees up the oven when you need it most.

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Expert Advice

  • Cool the sweet potatoes a bit before adding eggs so they don't start cooking
  • Save some whole pecan halves to place on top for a fancier look
  • A light sprinkle of flaky sea salt on the finished dish creates a wonderful sweet-salty mix

This sweet potato casserole has become such an important part of our family traditions that we can't imagine Thanksgiving without it. There's something special about those sweet, vanilla-flavored potatoes next to the buttery crunch of the topping. And since it works as both a side dish and dessert, it's truly the champion of any holiday meal!

Frequently Asked Questions

→ Can I prepare this ahead of serving?
Sure! You could make it all in one go, or bake the first layer, chill with the topping added, then finish baking before serving. Another option is baking fully, covering, and keeping it warm for up to half an hour.
→ How should I cook the sweet potatoes?
It’s your call! Roast them at 400°F for an hour, microwave for around 15 minutes after piercing, or boil peeled potatoes for about half an hour. They just need to be soft for mashing.
→ Can I use less sugar in this?
Yes, feel free to cut the sweet potato mixture’s sugar in half for a less sweet bake. The natural sweetness of the potatoes will shine through, and there will still be plenty of sweetness in the topping.
→ What if I don’t want to use pecans?
No problem! Walnuts are a great pick instead, or for a nut-free version, mix in some cinnamon-flavored oats for crunch or simply skip the nuts.
→ How do I know if it’s cooked?
It’s ready when the topping is crisp and golden, and the edges of the sweet potato layer look firm. The center might jiggle a bit, but it’ll firm up as it cools.

Sweet Potato Casserole

This comforting dish layers soft mashed sweet potatoes with a crispy brown sugar and pecan topping, perfect for holiday dinners.

Prep Time
60 Minutes
Cook Time
35 Minutes
Total Time
95 Minutes

Category: Seasonal Cooking

Difficulty: Easy

Cuisine: American

Yield: 12 Servings

Dietary: Vegetarian

Ingredients

→ For the Sweet Potato Base

01 4 big sweet potatoes
02 ½ cup of white sugar
03 1 tsp of salt (use kosher if you have it)
04 1 tsp of vanilla extract
05 2 eggs (large size)
06 ½ cup melted unsalted butter

→ For the Crunchy Topping

07 1 cup of packed light brown sugar
08 ½ cup of regular flour
09 1 cup of pecans, chopped
10 ½ cup butter, melted

Instructions

Step 01

Get the sweet potatoes soft in whatever way you like. Bake for an hour at 400°F, poke them with a fork and zap them in the microwave for 15 minutes, or peel and boil for half an hour.

Step 02

Turn the oven to 375°F. Use nonstick spray (coconut oil works too!) on a 2-quart baking dish. Leave it aside for later.

Step 03

Mash the cooked sweet potatoes in a large bowl. Toss in the sugar, kosher salt, vanilla, eggs, and melted butter. Beat everything together using your mixer for 4-5 minutes until it’s smooth and fluffy.

Step 04

Put the sweet potato mix into the dish you prepared. Slide it into the oven and bake for 25 minutes.

Step 05

While the base is baking, whip up the topping. In a smaller bowl, stir together brown sugar, flour, melted butter, and pecans with a fork. Mix until you get a crumbly texture, then set it aside.

Step 06

When the base has baked for 25 minutes, pull it out of the oven. Sprinkle the crunchy topping over the sweet potato layer. Put it back in the oven for another 10-15 minutes until the top is golden brown.

Step 07

You can serve it straight out of the oven or cover it with foil and serve within half an hour.

Notes

  1. To get that classic Ruth’s Chris vibe, use melted butter in the topping. Prefer a chunkier feel? Go with softened butter.
  2. You can prep this ahead! Bake the base for 25 minutes, add the topping, cover, and refrigerate. When ready, bake for 20 minutes more until heated and browned.
  3. Make the whole thing earlier and keep it warm under foil for up to 30 minutes while cooking other dishes.

Tools You'll Need

  • 2-quart baking dish
  • Mixer (electric)
  • Big bowl for mixing
  • Small bowl for topping
  • Fork (for mixing topping)

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Has pecans (a nut)
  • Contains eggs
  • Has dairy (butter)
  • Contains gluten (flour in topping)

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 380
  • Total Fat: 20 g
  • Total Carbohydrate: 48 g
  • Protein: 4 g