Potatoes and Onions and Cheese Oh My

Indulge in comfort food at its finest with this irresistible "Potatoes and Onions and Cheese Oh My" recipe—a rich, cheesy casserole that’s destined to become a family favorite. Perfectly thin russet potatoes are layered with sweet, golden caramelized onions and sharp cheddar cheese, then bathed in a creamy garlic-thyme sauce for a decadent dish bursting with flavor. This baked delight features a crisp, golden topping while staying irresistibly creamy inside, making it the ultimate side dish for a cozy dinner or a holiday feast. With its simple ingredients and classic flavors, this recipe offers a modern twist on scalloped potatoes, delivering hearty, flavorful bites in every forkful. Whether it’s a special occasion or a weeknight indulgence, this dish is easy to prepare and sure to impress.

Nutriscore Rating: 66/100

Prep Time:20 mins

Cook Time:50 mins

Total Time:70 mins

Servings: 6

Ingredients

• 4 large Russet potatoes
• 2 large Yellow onion
• 2 cups Sharp cheddar cheese
• 1 cup Heavy cream
• 2 tablespoons Unsalted butter
• 2 cloves Garlic
• 1 teaspoon Salt
• 0.5 teaspoon Black pepper
• 1 teaspoon Fresh thyme
• 1 tablespoon Olive oil

Directions

Step 1

Preheat your oven to 375°F (190°C).

Step 2

Wash, peel, and thinly slice the russet potatoes into rounds, about 1/8-inch thick. Use a mandoline slicer for best results if available.

Step 3

Peel the onions and slice them into thin rings.

Step 4

Finely mince the garlic cloves.

Step 5

Heat a skillet over medium heat and add the olive oil and 1 tablespoon of unsalted butter. Add the onions and cook, stirring frequently, until they are caramelized and golden brown, about 15 minutes. Set aside.

Step 6

In a saucepan over low heat, melt the remaining 1 tablespoon of butter. Add the minced garlic and cook for 1 minute until fragrant. Stir in the heavy cream, salt, pepper, and fresh thyme. Heat until warm but not boiling.

Step 7

Grease a 9x13-inch baking dish. Arrange a layer of potato slices on the bottom of the dish, slightly overlapping each slice.

Step 8

Spread a portion of the caramelized onions evenly over the potatoes and sprinkle with a handful of shredded cheddar cheese.

Step 9

Repeat this layering process—potatoes, onions, cheese—until all the ingredients are used up. Finish with a final layer of cheese on top.

Step 10

Pour the warm cream mixture evenly over the layers, ensuring it coats everything.

Step 11

Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes.

Step 12

Remove the foil and bake for an additional 20 minutes, or until the potatoes are tender and the top is golden and bubbly.

Step 13

Allow the dish to cool for 5 minutes before serving. Enjoy!

Nutrition Facts

Serving size	(2021.7g)

Amount per serving	% Daily Value*
Calories	3315.1

Total Fat 190.9g	0%
Saturated Fat 112.7g	0%
Polyunsaturated Fat 1.3g
Cholesterol 544.1mg	0%
Sodium 4075.5mg	0%
Total Carbohydrate 302.6g	0%
Dietary Fiber 26.5g	0%
Total Sugars 26.8g
Protein 95.2g	0%

Vitamin D 0IU	0%
Calcium 1881.5mg	0%
Iron 15.0mg	0%
Potassium 7206.9mg	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: 51.9%

Protein: 11.5%

Carbs: 36.6%