One Potato Two Potato Onion Bake

Delight your taste buds with the irresistible "One Potato Two Potato Onion Bake," a comforting blend of layers that’s perfect for family dinners or special occasions. This hearty gratin combines the earthy goodness of russet potatoes, the subtle sweetness of sweet potatoes, and the rich savoriness of caramelized onions. Infused with garlic and fresh thyme, then smothered in a creamy, cheesy mixture of Gruyère and Parmesan, this dish bakes to golden, bubbly perfection. With a perfect balance of flavors and textures in every bite, it’s as indulgent as it is simple to prepare. Great as a centerpiece or a side dish, this baked casserole is sure to impress! Keywords: potato casserole, cheesy potato bake, sweet and russet potato recipe, creamy gratin bake, easy comfort food recipes.

Nutriscore Rating: 65/100

Prep Time:20 mins

Cook Time:60 mins

Total Time:80 mins

Servings: 6

Ingredients

• 3 large Russet potatoes
• 2 medium Sweet potatoes
• 2 medium Yellow onions
• 3 cloves Garlic
• 1.5 cups Heavy cream
• 2 tablespoons Unsalted butter
• 1 cup (shredded) Gruyère cheese
• 0.5 cup (grated) Parmesan cheese
• 1 teaspoon Fresh thyme
• 1 teaspoon Salt
• 0.5 teaspoon Black pepper
• 1 tablespoon Olive oil

Directions

Step 1

Preheat your oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish with olive oil.

Step 2

Peel the russet potatoes and sweet potatoes, then slice them into thin, even rounds (about 1/8 inch thick) using a sharp knife or mandoline. Set aside.

Step 3

Peel and thinly slice the yellow onions into rings. Mince the garlic cloves.

Step 4

In a medium saucepan over medium heat, melt the butter. Add the garlic and cook for 1 minute until fragrant but not browned.

Step 5

Stir in the heavy cream, thyme, salt, and black pepper. Heat the mixture gently until warmed, but do not let it boil. Remove from heat and set aside.

Step 6

Layer half of the russet potato slices evenly in the bottom of the prepared baking dish. Follow with a layer of sweet potato slices, then half of the onion slices. Sprinkle with half of the Gruyère and Parmesan cheeses.

Step 7

Repeat the layers with the remaining potatoes, sweet potatoes, onions, and cheese.

Step 8

Pour the warm cream mixture evenly over the layered ingredients, ensuring that it seeps through the layers.

Step 9

Cover the dish tightly with aluminum foil and bake in the preheated oven for 40 minutes.

Step 10

Remove the foil and bake for an additional 20 minutes, or until the top is golden brown and bubbly, and the potatoes are tender when pierced with a knife.

Step 11

Allow the dish to cool for 5-10 minutes before serving. Garnish with additional thyme if desired.

Nutrition Facts

Serving size	1980.7 grams (1980.7g)

Amount per serving	% Daily Value*
Calories	3473

Total Fat 215.20g	276%
Saturated Fat 122.20g	611%
Polyunsaturated Fat 3.60g
Cholesterol 612mg	204%
Sodium 4025mg	175%
Total Carbohydrate 276.90g	101%
Dietary Fiber 27.80g	99%
Total Sugars 32.10g
Protein 88.60g	177%

Vitamin D 32IU	159%
Calcium 2068mg	159%
Iron 13mg	74%
Potassium 5528mg	118%

*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: 57.0%

Protein: 10.4%

Carbs: 32.6%