Thanksgiving Sweet Potato Au Gratin is a dish that tantalizes your taste buds with its creamy layers of sweet potatoes, all bathed in a rich, cheesy sauce. Picture this: you scoop into a golden-brown, bubbling casserole, revealing velvety sweet potato slices that are perfectly tender and kissed by nutty gruyere cheese. creamy mashed potatoes The aroma wafts through the house, making everyone’s mouth water as they gather around the table. For more inspiration, check out this cheesy loaded meatloaf casserole recipe.
This dish isn’t just a side; it’s a memory-maker. I remember the first time my mom made Thanksgiving Sweet Potato Au Gratin. She called it “the fancy potato dish” and insisted that it was her secret to winning hearts at family gatherings. turkey and stuffing roll ups Seeing family members go back for seconds (and thirds) truly warmed my heart and made every bit of the effort worth it.
[info_box title=”Why You’ll Love This Recipe”] Thanksgiving Sweet Potato Au Gratin is simple yet elegant, perfect for impressing guests without breaking a sweat in the kitchen. Each layer bursts with flavor thanks to sweet potatoes and melty cheese that creates a cozy comfort food experience. Its stunning golden crust adds visual delight to your holiday table, making it an instant crowd-pleaser. Plus, it’s versatile enough to be served at any festive occasion beyond Thanksgiving! [/info_box]
Everyone loves this dish! My cousin once declared it “the best thing since sliced bread,” which is quite a compliment coming from someone who eats plain toast for breakfast!

Essential Ingredients
Here’s what you’ll need to make this delicious dish:
Sweet Potatoes: Choose firm sweet potatoes without any blemishes for the best texture and sweetness.
Heavy Cream: Use heavy cream for richness; half-and-half won’t provide the same luxurious mouthfeel.
Gruyère Cheese: This cheese melts beautifully and adds a nutty flavor that complements sweet potatoes perfectly.
Garlic: Fresh garlic cloves elevate the dish’s aroma; avoid pre-minced garlic for better flavor.
Thyme: Fresh thyme adds an earthy note; you can substitute dried thyme if fresh isn’t available.
Salt and Pepper: Essential for seasoning; adjust according to your taste preference.
Panko Breadcrumbs: Use panko for a crispy topping; regular breadcrumbs won’t give you that satisfying crunch.
The full ingredients list, including measurements, is provided in the recipe card directly below.
Let’s Make it Together
Preheat your oven to 375°F (190°C) so it’s ready when you’re done prepping. Grab a large baking dish and lightly grease it with cooking spray or butter.
Slice those Sweet Potatoes: Peel and slice sweet potatoes into thin rounds about 1/8 inch thick. A mandoline works wonders here if you have one.
Sauté Garlic and Thyme: In a skillet over medium heat, melt some butter and add minced garlic until fragrant—about 1 minute—then toss in fresh thyme. For more inspiration, check out this honey garlic butter roasted carrots recipe.
Create the Creamy Mixture: In a bowl, whisk together heavy cream, salt, pepper, sautéed garlic, and thyme until well combined; this will be your luscious sauce.
Layer It Up!: In your greased baking dish, layer half the sweet potatoes followed by half of the creamy mixture. Sprinkle half of the Gruyère on top before repeating layers.
Add Topping and Bake!: Finish with remaining Gruyère cheese topped with panko breadcrumbs for crunch. Cover with foil and bake for 40 minutes before removing foil and baking until bubbly and golden brown—usually another 15-20 minutes.
Now just let that beauty rest for about 10 minutes before serving to allow flavors to meld perfectly. Trust me; this wait is worth every second as you watch guests marvel at their plates!
Thanksgiving Sweet Potato Au Gratin is not just another dish on the table—it’s an experience filled with warmth, laughter, and delightful flavors that linger long after dinner is over. pumpkin cake for dessert So grab those ingredients and get ready to create something unforgettable!
[info_box title=”You Must Know”] Thanksgiving Sweet Potato Au Gratin is not just a side dish; it’s a showstopper that adds festive flair to your holiday table. The creamy, cheesy layers meld beautifully with sweet potatoes, creating a comforting dish that sings of seasonal warmth. [/info_box]
Perfecting the Cooking Process
Start by prepping your sweet potatoes and then layering them with cheese and cream for optimal flavor infusion. Bake until bubbly, ensuring a perfect combination of texture and taste.

Add Your Touch
Feel free to swap sweet potatoes with butternut squash or add herbs like thyme for extra flavor. butternut squash casserole A sprinkle of nutmeg can elevate the creamy layers to new heights.
Storing & Reheating
Store leftovers in an airtight container in the fridge for up to three days. Reheat in the oven at 350°F until warmed through for the best texture.
[info_box title=”Chef’s Helpful Tips”] To enhance Thanksgiving Sweet Potato Au Gratin, consider using fresh herbs instead of dried ones for a fresher taste. Layer different cheeses like Gruyère and cheddar for added depth. Ensure even slicing of sweet potatoes to guarantee uniform cooking and texture. [/info_box]
Sharing this recipe always brings back memories of my aunt’s laughter as we scrambled to save the last bite from being devoured at family gatherings.

FAQ
Can I prepare Thanksgiving Sweet Potato Au Gratin ahead of time?
Yes, you can assemble it a day prior; just refrigerate until baking.
What type of cheese works best in this recipe?
Gruyère and sharp cheddar provide a deliciously creamy combination.
Can I make this dish vegan-friendly?
Absolutely! Use plant-based cream and cheese alternatives for a vegan version.

Thanksgiving Sweet Potato Au Gratin
- Total Time: 1 hour 20 minutes
- Yield: Serves approximately 6
Description
Thanksgiving Sweet Potato Au Gratin is a delightful dish that elevates your holiday meal with its creamy layers of tender sweet potatoes enveloped in a rich, cheesy sauce. This crowd-pleaser features nutty Gruyère cheese and a crispy panko topping, creating an irresistible combination of flavors and textures. Perfect for family gatherings, this recipe will not only impress your guests but also evoke cherished memories around the table.
Ingredients
- 2 lbs sweet potatoes, peeled and thinly sliced
- 1 cup heavy cream
- 1 ½ cups Gruyère cheese, shredded
- 3 cloves garlic, minced
- 2 tsp fresh thyme (or 1 tsp dried thyme)
- Salt and pepper, to taste
- ½ cup panko breadcrumbs
- 2 tbsp butter (for greasing)
Instructions
- Preheat oven to 375°F (190°C) and grease a large baking dish.
- In a skillet over medium heat, melt butter and sauté minced garlic until fragrant. Add thyme and cook for another minute.
- In a bowl, whisk together heavy cream, sautéed garlic mixture, salt, and pepper.
- Layer half of the sweet potato slices in the baking dish. Pour half of the creamy mixture over them and sprinkle with half of the Gruyère cheese. Repeat layers.
- Top with remaining Gruyère cheese and panko breadcrumbs for crunch.
- Cover with foil and bake for 40 minutes. Remove foil and bake an additional 15-20 minutes until bubbly and golden brown.
- Allow to rest for 10 minutes before serving.
- Prep Time: 20 minutes
- Cook Time: 60 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cup (200g)
- Calories: 350
- Sugar: 8g
- Sodium: 450mg
- Fat: 21g
- Saturated Fat: 12g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 4g
- Protein: 8g
- Cholesterol: 60mg






