Sweet Potatoes Au Gratin Recipe
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5.0
6 reviews
Excellent
Sweet Potatoes Au Gratin Recipe
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A sweet and savory twist on a classic, this Sweet Potatoes au Gratin recipe is sure to steal center stage at your holiday or Thanksgiving table! Thin slices of sweet potatoes are coated in a creamy Gruyere cheese sauce, loaded with TONS herbs and earthy spice, and finished with a crunchy crumb topping that’s irresistible.
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Ingredients
- 3 lbs. sweet potatoes cut into ⅛” slices
- 2 tsp. salt divided
- ½ tsp. black pepper
- 2 Tbsp. butter salted
- 2 Tbsp. flour all purpose or gluten-free 1-to-1 blend
- 4 cloves garlic finely minced
- 1 ½ cups milk regular or plant-based, room temperature.
- 1 cup gruyere cheese shredded
- 1 cup cheddar cheese shredded
- 1 tsp. each of thyme and rosemary fresh
- ¼ tsp. nutmeg ground
Panko Parmesan Topping:
- 1 Tbsp. butter melted
- ¼ cup panko crumbs or regular breadcrumbs
- ¼ cup Parmesan Cheese
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Instructions
- Preheat the oven to 375 degrees.
- Prepare the Potatoes: Rinse and scrub the potatoes to remove any visible dirt. Dry thoroughly using a dish towel. Carefully cut the sweet potatoes into ⅛” slices using either a mandoline or a sharp chef’s knife.
- Lay Potatoes in Baking Dish: Spray a 13x9-inch baking dish with non-stick cooking spray. Layer half of the sliced sweet potatoes in the bottom of the dish, sprinkle with ½ teaspoon salt and ¼ teaspoon of black pepper. Top with the remaining slices and another ½ teaspoon salt and ¼ teaspoon of black pepper
- Whisk the Sauce: Add the butter to a medium-sized saucepan over medium heat. Wait for it to melt before adding in the minced garlic cloves. Saute for 30-60 seconds, or until fragrant. Reduce heat to medium-low and sprinkle in the flour. Begin whisking immediately. Once it forms a thick paste, pour in ¼ cup of the room temperature milk, whisking well. When it thickens up, whisk in another ¼ cup of the milk and continue this process until all of the milk has been used and the sauce is smooth.
- Mix in Cheese and Herbs: Remove the pot from the heat and add in the Gruyere cheese, cheddar cheese, fresh herbs, nutmeg, and remaining 1 teaspoon of salt. Whisk until the cheese is completely melted.
- Cover and Bake: Pour the cheese sauce over the sliced potatoes in the baking dish, spreading it out using a spatula so all of the slices are coated. Cover the dish with aluminum foil and bake in the preheated oven for 30 minutes.
- Add Crumb Topping: While the potatoes are baking, toss together the crumb topping ingredients in a medium-sized bowl until well combined. Remove the foil from the dish and sprinkle the crumb topping evenly over the potatoes. Continue baking for an additional 15-20 minutes, or until the topping has browned slightly and the potatoes are fork tender.
- Serve sweet potatoes au gratin immediately with a sprinkle of finely chopped fresh rosemary and thyme.
Notes
- Storage: Keep leftovers in an airtight container in the refrigerator for up to 4 to 5 days.
- Potatoes: Cut them equally thin so they cook at the same rate.
- Topping: Don't add the breadcrumbs right away or they'll burn.
- Cheese: You can sub a dairy-free cheese if necessary, or choose a different variety.
Nutrition Information
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Calories
372kcal
(19%)
Carbohydrates
44g
(15%)
Protein
14g
(28%)
Fat
16g
(25%)
Saturated Fat
9g
(45%)
Polyunsaturated Fat
1g
Monounsaturated Fat
4g
Trans Fat
0.2g
Cholesterol
46mg
(15%)
Sodium
903mg
(38%)
Potassium
643mg
(18%)
Fiber
6g
(24%)
Sugar
11g
(22%)
Vitamin A
24710IU
(494%)
Vitamin C
5mg
(6%)
Calcium
442mg
(44%)
Iron
2mg
(11%)
Nutrition Facts
Serving: 8servings
Amount Per Serving
Calories 372 kcal
% Daily Value*
| Calories | 372kcal | 19% |
| Carbohydrates | 44g | 15% |
| Protein | 14g | 28% |
| Fat | 16g | 25% |
| Saturated Fat | 9g | 45% |
| Polyunsaturated Fat | 1g | 6% |
| Monounsaturated Fat | 4g | 20% |
| Trans Fat | 0.2g | 10% |
| Cholesterol | 46mg | 15% |
| Sodium | 903mg | 38% |
| Potassium | 643mg | 14% |
| Fiber | 6g | 24% |
| Sugar | 11g | 22% |
| Vitamin A | 24710IU | 494% |
| Vitamin C | 5mg | 6% |
| Calcium | 442mg | 44% |
| Iron | 2mg | 11% |
* Percent Daily Values are based on a 2,000 calorie diet.
Genuine Reviews
User Reviews
Overall Rating
5.0
6 reviews
Excellent
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