Creamy scalloped sweet potatoes layered with garlic, butter, thyme, and parmesan cheese. The ultimate comfort food side dish you’ll want on repeat.
I’ll be honest with you—I didn’t grow up eating anything called scalloped sweet potatoes. In my house, sweet potatoes showed up in one form: mashed with brown sugar and covered in marshmallows. Which, let’s be real, sounds more like dessert than a vegetable side dish. My grandma swore by it, my mom made it every Thanksgiving, and we all ate it without complaining (okay, sometimes with complaining).
Remember it later!
Planning to try this recipe soon? Pin it for a quick find later!
Remember it later!
Planning to try this recipe soon? Pin it for a quick find later!
Then a few years ago, I was flipping through some holiday magazines—those glossy ones that make you feel like you need candlesticks and matching napkin rings to be a real adult. I stumbled on a recipe for scalloped potatoes with garlic and cream, and my brain went, what if I swap the regular potatoes for sweet potatoes? That little lightbulb moment changed everything.
The first time I made this garlic scalloped sweet potatoes recipe, my husband wandered into the kitchen halfway through baking, sniffed the air like a cartoon character, and asked, “What smells so good?” By the time I pulled it out, the whole place smelled like butter, garlic, and thyme. My daughter (the one who claims to “hate vegetables”) took a bite and said, “It tastes like candy, but fancy.” I still laugh about that. These days, the dish sneaks into weeknight dinners too—because why should comfort food wait for Thanksgiving?
Here’s a quick peek at what’s inside:
Table of content
Why You’ll Love This Garlic Scalloped Sweet Potatoes Recipe?
Okay, here’s my pitch. Imagine cozying up in a soft blanket on a rainy night. Now imagine that same comfort but in food form. That’s this scalloped sweet potato bake. Creamy, garlicky, cheesy, and just rich enough that you feel spoiled, but not so over-the-top you regret it later.
The garlic balances the natural sweetness of the potatoes, while the parmesan forms this golden, slightly crisp topping that’s almost too good to share. It feels like the fancier cousin of the marshmallow casserole. You know the one—that dish you politely scoop onto your plate at holidays but secretly wish there was something better? This is the better.
Ingredient Notes:
Let’s talk players. Because if you’re gonna pull off a great garlic scalloped sweet potatoes recipe, you need to know what makes each ingredient matter.
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Sweet Potatoes – The obvious star. Slice them thin so they bake evenly. I usually aim for about 1/8 inch, but don’t stress over perfection. Rustic works.
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Garlic – I go bold here—five cloves. Might sound like a lot, but once it bakes, it’s mellow and cozy, not sharp. Garlic is basically the life of the party in this dish.
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Butter – Melts into the cream and garlic. Honestly, it’s what makes the sauce feel decadent.
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Heavy Cream – This is where the magic happens. Thick, rich, coats every slice. Milk just doesn’t cut it here (trust me, I tried once—it was sad).
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Thyme – That earthy note that keeps the dish from being too sweet. Plus, it makes you feel a little fancy, like Ina Garten might pop in for dinner.
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Parmesan Cheese – Adds that nutty, salty hit at the end. And when it browns on top? Forget it. You’ll want to pick the crispy bits off with your fingers.
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Cornstarch – A little thickener so the cream doesn’t just run to the bottom. You don’t notice it, but it makes the texture perfect.
How To Make Garlic Scalloped Sweet Potatoes?
I’ll walk you through this like we’re cooking together in the kitchen.
Step 1: Preheat and prep.
Set the oven to 375°F. Butter up a 9×13 baking dish (or spray it if you’re team nonstick). This is your canvas.
Step 2: Make the cream mixture.
In a small saucepan, whisk cornstarch into heavy cream until it’s smooth. Add butter, garlic, thyme, salt, and pepper. Warm it on medium-low until the butter melts and everything smells incredible. Don’t let it boil—you want it warm, not bubbling.
Step 3: Layer the potatoes.
Arrange the sweet potato slices in the baking dish, overlapping slightly. Kind of like shingles on a roof—but tastier. Pour the cream mixture over the top, making sure every slice gets coated.
Step 4: Bake the base.
Slide it into the oven for 30 minutes. The cream will bubble, the potatoes will soften, and your kitchen will start smelling like heaven.
Step 5: Add the cheese.
Take it out, sprinkle parmesan over the top, and return it for another 10 minutes. The cheese melts into a golden crust. Try not to hover over the oven window (I always do).
Step 6: Rest, then serve.
Give it 5 minutes before serving so the sauce settles. Then dig in. And don’t be surprised if you catch yourself going back “just for a small second serving.”
Want To Save This Recipe?
Storage Options:
If by some miracle there are leftovers (rare in my house), stash them in a sealed container in the fridge for up to 3 days. Reheat in the oven at 350°F so you keep that crispy top. The microwave works in a pinch, but you’ll lose some crunch. As for freezing? Eh. I’ve tried it. The cream separates and the potatoes get weird. My advice: eat it fresh while it’s dreamy.
Variations and Substitutions:
Want to switch things up? Here are a few ideas I’ve tested (or daydreamed about):
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Cheese swap – Gruyère is amazing if you want it extra fancy. Cheddar works too for a more comfort-food vibe.
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Herb changes – Rosemary or sage will take it in a totally different direction.
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Dairy-free experiment – Coconut cream + vegan butter + dairy-free cheese. Not the same, but still solid.
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Add-ins – Crumbled bacon between layers? Yes, please. Caramelized onions? Even better.
What to Serve with Garlic Scalloped Sweet Potatoes?
This garlic scalloped sweet potatoes recipe is basically the ultimate sidekick. Here are a few pairings I love:
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Roast chicken – Simple, classic, perfect.
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Grilled steak – The creamy sweetness balances out the richness.
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Holiday turkey or ham – Makes marshmallow casserole feel like yesterday’s news.
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Roasted veggies or a crisp salad – Because balance (and you’ll feel slightly less guilty about all the cream).
Frequently Asked Questions:
Can I make this ahead of time?
Yep! Assemble it the night before, cover with foil, and keep in the fridge. Bake as directed when you’re ready—just give it a few extra minutes since it’s cold.
Do I need a mandoline slicer?
Nope. A sharp knife works fine. A mandoline just gives you bragging rights and super-even slices.
Can I swap regular potatoes?
Totally. Yukon Golds or russets will give you a more traditional scalloped potato vibe. But try the sweet potato version at least once—you might never go back.
And that’s the story of my Garlic Scalloped Sweet Potatoes Recipe—born from a holiday experiment and now a dish that makes random Tuesday nights feel special. So… are you team marshmallow casserole or team garlic scalloped sweet potatoes? I know where I stand.
Remember it later!
Planning to try this recipe soon? Pin it for a quick find later!
Remember it later!
Planning to try this recipe soon? Pin it for a quick find later!
Keep the Flavor Coming – Try These:
Garlic Scalloped Sweet Potatoes Recipe
Ingredients
- 1 teaspoon cornstarch
- 1 1/2 cups heavy cream
- 1/2 cup 1 stick unsalted butter
- 5 cloves garlic finely minced
- 1 tablespoon fresh thyme leaves
- 3 pounds sweet potatoes peeled and sliced 1/8-inch thick
- 1/3 cup freshly grated parmesan cheese
- Kosher salt and freshly ground black pepper to taste
Instructions
Prepare the oven and baking dish.
- Preheat the oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with butter or nonstick cooking spray and set aside.
Create the cream mixture.
- In a small saucepan, whisk the cornstarch into the heavy cream until smooth. Place the saucepan over medium-low heat and add the butter, garlic, and thyme. Season with salt and pepper. Cook until the butter has melted and the cream is heated through, about 3–5 minutes. Do not allow the mixture to boil. Remove from heat.
Assemble the dish.
- Arrange the sweet potato slices evenly in the prepared baking dish, slightly overlapping each layer. Pour the warm cream mixture evenly over the potatoes to ensure thorough coverage.
Bake the potatoes.
- Place the dish in the oven and bake for 30 minutes, or until the potatoes are tender and the sauce is bubbling lightly at the edges.
Add the parmesan topping.
- Sprinkle the grated parmesan cheese evenly over the top. Return the dish to the oven and bake for an additional 10 minutes, or until the cheese has melted and developed a golden crust.
Rest and serve.
- Remove from the oven and allow the dish to rest for 5 minutes before serving.
Notes
I’m Bitty, owner of nodashofgluten.com, where I share simple, delicious recipes for all tastes, including gluten-free. Check out my “About Me” page for more info!
