Description
This decadent dish combines two comfort food favorites: ultra-creamy mashed potatoes and a rich garlic Parmesan potato gratin. It’s the ultimate cheesy side dish perfect for holidays, gatherings, or anytime you want to impress with layers of flavor and texture.
Ingredients
Scale
- 3 lbs Yukon gold potatoes, peeled and cut into chunks
- 1/2 cup unsalted butter
- 1/2 cup sour cream
- 1/2 cup heavy cream
- 1/2 cup shredded cheddar cheese
- Salt and pepper, to taste
- 2 cloves garlic, minced
- 1 cup shredded Parmesan cheese
- 1 cup shredded mozzarella cheese
- 1/2 cup milk
- 2 tbsp all-purpose flour
- 1 tbsp butter (for greasing)
- Fresh parsley, chopped (optional for garnish)
Instructions
- Preheat oven to 375°F (190°C). Lightly butter a 9×13-inch baking dish.
- Boil potatoes in salted water until fork-tender, about 15–20 minutes. Drain well.
- Mash potatoes with butter, sour cream, heavy cream, cheddar, salt, and pepper until smooth and creamy.
- Spread mashed potatoes evenly in the baking dish.
- In a saucepan over medium heat, melt 2 tbsp butter. Add minced garlic and sauté for 1 minute. Stir in flour and cook for another minute.
- Slowly whisk in milk, then add Parmesan and mozzarella cheese. Cook until sauce thickens and cheese melts.
- Pour garlic Parmesan sauce over the mashed potatoes, smoothing with a spatula.
- Bake uncovered for 20–25 minutes, until golden and bubbly.
- Garnish with chopped parsley and serve warm.
Notes
- Use a potato ricer for extra smooth mashed potatoes.
- For added flavor, mix some caramelized onions or cooked bacon into the mash.
- Prepare in advance and reheat before serving for convenience.
- Try gruyère or fontina cheese for a gourmet twist.
Nutrition
- Serving Size: 1 portion
- Calories: 380
- Sugar: 3g
- Sodium: 320mg
- Fat: 26g
- Saturated Fat: 16g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 2g
- Protein: 10g
- Cholesterol: 70mg
Keywords: mashed potatoes, potato gratin, cheesy mashed potatoes, garlic parmesan, holiday side, creamy potato casserole