5 from 18 votes
Creamy Potato Gratin
The Creamy Potato Gratin features thinly sliced potatoes layered in a rich, smooth béchamel sauce infused with Italian seasoning, garlic, and onion. Mozzarella cheese melts into the sauce and on top to form a golden crust. Baking in the oven until bubbly and tender yields a comforting side dish with creamy texture and mild herb flavor. Its creamy sauce and tender potatoes make it well suited to accompany roasted meats or vegetables.
Prep Time
15 mins
Cook Time
1 hr 30 mins
Total Time
1 hr 45 mins
Servings:
8
servings
Calories:
251 kcal
Course:
Main Course, Appetizer
Cuisine:
French, Italian, American
Ingredients
- 5 tablespoons butter unsalted
- 1 onion finely chopped, medium
- 1/4 cup all-purpose flour
- 1/2 teaspoon salt coarse
- 1 teaspoon Italian seasoning
- 1/2 teaspoon black pepper
- 4 cups milk whole
- 2 1/2 cups mozzarella cheese shredded, or parmesan cheese
- 6 cups potatoes about 5-6 medium potatoes, thinly sliced, peeled
Instructions
- First, preheat the oven to 375 degrees F.
- Grease a 9x13 inches deep baking dish and set it aside.
Cup of Yum
Make the sauce
- In a medium saucepan, melt butter over medium heat, add onion and cook until softened, about 6 minutes.
- Add flour, salt, pepper, and Italian seasoning and cook, stirring frequently, until mixture is pale golden for about 5 minutes.
- Whisking constantly, pour in 2 cups of milk, cook for a few minutes and add the remaining 2 cups of milk, whisk until smooth. Cook mixture stirring constantly until it starts to boil.
- Reduce heat to low and simmer gently, stirring occasionally, until the sauce thickens and is very creamy about 8 - 10 minutes. Taste and adjust for salt and pepper.
- Remove from heat and stir in 1 1/2 cup of shredded cheese until melted.
Assemble and bake
- Mix the potatoes with the béchamel sauce and transfer the mixture to the baking dish, top with the remaining 1 cup of mozzarella cheese and transfer the dish into the oven.
- Bake for 1 hour or 1 hour and 10 minutes until the potatoes are tender.
- Serve and enjoy!
Nutrition Information
Calories
251kcal
(13%)
Carbohydrates
27g
(9%)
Protein
17g
(34%)
Fat
8g
(12%)
Saturated Fat
5g
(25%)
Cholesterol
30mg
(10%)
Sodium
505mg
(21%)
Potassium
781mg
(17%)
Fiber
4g
(16%)
Sugar
7g
(14%)
Vitamin A
610IU
(12%)
Vitamin C
16mg
(18%)
Calcium
501mg
(50%)
Iron
4.8mg
(27%)
Nutrition Facts
Serving: 8 servings
Amount Per Serving
Calories 251
% Daily Value*
| Calories | 251kcal | 13% |
| Carbohydrates | 27g | 9% |
| Protein | 17g | 34% |
| Fat | 8g | 12% |
| Saturated Fat | 5g | 25% |
| Cholesterol | 30mg | 10% |
| Sodium | 505mg | 21% |
| Potassium | 781mg | 17% |
| Fiber | 4g | 16% |
| Sugar | 7g | 14% |
| Vitamin A | 610IU | 12% |
| Vitamin C | 16mg | 18% |
| Calcium | 501mg | 50% |
| Iron | 4.8mg | 27% |
* Percent Daily Values are based on a 2,000 calorie diet.