Potatoes with Onion Sauce and Parmesan Cheese

Elevate your side dish game with these irresistibly creamy Potatoes with Onion Sauce and Parmesan Cheese! This hearty recipe combines tender Yukon Gold potatoes layered with a rich, velvety onion sauce made from caramelized onions, garlic, and a splash of heavy cream. Topped with savory grated Parmesan cheese and fragrant thyme, every bite is a perfect balance of flavors and textures. Baked to golden perfection, this dish is ideal as a comforting side for weeknight dinners or a standout addition to your holiday table. Ready in under an hour, this recipe is easy to prepare and guaranteed to impress. Perfect for fans of cheesy potato casseroles and lovers of rich, comforting flavors, this dish will quickly become a favorite in your kitchen.

Nutriscore Rating: 63/100

Prep Time:20 mins

Cook Time:35 mins

Total Time:55 mins

Servings: 4

Ingredients

• 1.5 lbs Yukon Gold potatoes
• 4 tbsp Unsalted butter
• 2 medium Yellow onions
• 3 large Garlic cloves
• 2 tbsp All-purpose flour
• 2 cups Chicken or vegetable broth
• 0.5 cup Heavy cream
• 0.75 cup Grated Parmesan cheese
• 1 tsp Fresh thyme leaves
• 1 tsp Salt
• 0.5 tsp Ground black pepper

Directions

Step 1

Peel and wash the Yukon Gold potatoes. Slice them into 1/4-inch thick rounds and set them aside in a bowl of cold water to prevent browning.

Step 2

Peel the yellow onions and thinly slice them. Mince the garlic cloves and set both aside.

Step 3

In a large skillet or saucepan, melt 2 tablespoons of unsalted butter over medium heat. Add the sliced onions and cook for 10-12 minutes, stirring often, until they are caramelized and golden brown.

Step 4

Add the minced garlic to the onions and cook for 1-2 minutes until fragrant.

Step 5

Sprinkle the flour over the onion mixture and stir to coat evenly. Cook for an additional 1 minute to remove the raw flour taste.

Step 6

Gradually pour in the chicken or vegetable broth, whisking constantly to prevent lumps. Bring the mixture to a simmer and cook for 2-3 minutes until it thickens slightly.

Step 7

Reduce the heat to low and stir in the heavy cream, salt, pepper, and fresh thyme. Allow the sauce to simmer gently for another 2 minutes. Remove from heat.

Step 8

Preheat your oven to 375°F (190°C).

Step 9

Grease a 9x13-inch baking dish with 1 tablespoon of butter.

Step 10

Drain the potato slices and pat them dry with a clean kitchen towel. Arrange half of the potato slices evenly in the prepared baking dish.

Step 11

Pour half of the onion sauce over the first layer of potatoes, spreading it evenly. Sprinkle 1/4 cup of grated Parmesan cheese over the top.

Step 12

Layer the remaining potato slices over the first layer, followed by the rest of the onion sauce. Top with the remaining Parmesan cheese.

Step 13

Cut the last tablespoon of butter into small pieces and scatter them over the surface of the dish.

Step 14

Cover the dish tightly with aluminum foil and bake in the preheated oven for 25 minutes.

Step 15

Remove the foil and bake for an additional 10-12 minutes, or until the top is golden and bubbling, and the potatoes are tender when pierced with a fork.

Step 16

Let the dish rest for 5 minutes before serving. Garnish with additional fresh thyme if desired and serve warm.

Nutrition Facts

Serving size	(1656.5g)

Amount per serving	% Daily Value*
Calories	1756.2

Total Fat 107.8g	0%
Saturated Fat 64.3g	0%
Polyunsaturated Fat g
Cholesterol 304mg	0%
Sodium 5205.3mg	0%
Total Carbohydrate 160.7g	0%
Dietary Fiber 14.3g	0%
Total Sugars 15.0g
Protein 46.5g	0%

Vitamin D 0IU	0%
Calcium 867.0mg	0%
Iron 7.0mg	0%
Potassium 3366.8mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 53.9%

Protein: 10.3%

Carbs: 35.7%