0 from 6 votes
Potato-Leek Gratin
Think you can't go without mashed potatoes for Thanksgiving? This showstopper of a side dish might just change your mind.
Prep Time
10 mins
Cook Time
1 hr 10 mins
Total Time
1 hr 30 mins
Servings: 6 -8 servings
Calories: 430 kcal
Course:
Side Dish
Cuisine:
American
Ingredients
- 2 tablespoons unsalted butter
- 2 large onions chopped
- 1 large leek white and light green parts only, thinly sliced
- 2 teaspoons salt divided
- 1 tablespoon brown sugar
- 1 cup vegetable broth divided
- ⅔ cup white wine
- ⅔ cup heavy or light cream
- 1 teaspoon balsamic vinegar
- 3 pounds Russet potatoes peeled and sliced ⅛ inch thick
- 2 teaspoons minced fresh thyme divided
- 1 teaspoon black pepper divided
- 1 ½ cups shredded manchego cheese
Instructions
- Preheat oven to 350ºF.
- Melt the butter in a large nonstick or cast iron skillet over medium-high heat. Add the onions, leek, and 1 teaspoon of salt. Cook until just beginning to brown, about 5 minutes, stirring occasionally. Stir in the brown sugar and cook, stirring frequently, until the onions are golden, about 5 minutes. Stir in ½ cup of the broth and cook until softened and sticky, about 5 minutes more. Transfer to a medium bowl.
- Add the remaining broth, white wine, and heavy cream to the pan along with the remaining 1 teaspoon of salt. Scrape the bottom of the pan to release any browned bits. Bring to a boil and then remove from the heat. Stir in the vinegar.
- In a 3-quart baking dish, scatter half of the potatoes. Sprinkle with 1 teaspoon of the thyme and ½ teaspoon of the black pepper. Spread the caramelized onions over the potatoes. Top with the remaining potatoes, thyme, and black pepper. Pour broth mixture over the potatoes.
- Bake until bubbling, about 30 minutes. Top with the Manchego cheese and bake until golden brown and cooked through, about 30-40 minutes. Let cool for 15 minutes before serving.
Cup of Yum
Notes
- Adapted from Cook's Country. This will turn out best if the potatoes are very thinly and evenly sliced. In order to achieve this, use a mandoline or the slicing attachment on a food processor. Gruyere cheese can be substituted for the Manchego, if desired.
Nutrition Information
Calories
430kcal
(22%)
Carbohydrates
51g
(17%)
Protein
13g
(26%)
Fat
18g
(28%)
Saturated Fat
12g
(60%)
Polyunsaturated Fat
1g
Monounsaturated Fat
2g
Trans Fat
1g
Cholesterol
55mg
(18%)
Sodium
1126mg
(47%)
Potassium
1071mg
(31%)
Fiber
4g
(16%)
Sugar
6g
(12%)
Vitamin A
774IU
(15%)
Vitamin C
19mg
(21%)
Calcium
368mg
(37%)
Iron
3mg
(17%)
Nutrition Facts
Serving: 6-8 servings
Amount Per Serving
Calories 430
% Daily Value*
| Calories | 430kcal | 22% |
| Carbohydrates | 51g | 17% |
| Protein | 13g | 26% |
| Fat | 18g | 28% |
| Saturated Fat | 12g | 60% |
| Polyunsaturated Fat | 1g | 6% |
| Monounsaturated Fat | 2g | 10% |
| Trans Fat | 1g | 50% |
| Cholesterol | 55mg | 18% |
| Sodium | 1126mg | 47% |
| Potassium | 1071mg | 23% |
| Fiber | 4g | 16% |
| Sugar | 6g | 12% |
| Vitamin A | 774IU | 15% |
| Vitamin C | 19mg | 21% |
| Calcium | 368mg | 37% |
| Iron | 3mg | 17% |
* Percent Daily Values are based on a 2,000 calorie diet.