Creamy mashed potato gratin is a rich and comforting dish that combines velvety mashed potatoes with a golden, cheesy crust. This baked gratin takes traditional mashed potatoes to the next level, making it a perfect side dish for holiday feasts, dinner parties, or cozy family meals. With its smooth, buttery texture and crispy, flavorful topping, this dish is sure to impress.
Why You’ll Love This Recipe
- Ultra-creamy texture – Mashed potatoes mixed with cream and butter create a luxurious consistency.
- Golden, cheesy crust – A crispy, flavorful topping adds contrast to the smooth mashed potatoes.
- Perfect for gatherings – A great make-ahead dish that feeds a crowd.
- Versatile – Can be customized with different cheeses, herbs, or mix-ins.
Ingredients
(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)
- Potatoes (Yukon Gold or Russet)
- Heavy cream
- Whole milk
- Butter
- Garlic, minced
- Salt and pepper
- Parmesan cheese, grated
- Gruyère or cheddar cheese, shredded
- Nutmeg (optional, for warmth)
- Breadcrumbs (optional, for extra crunch)
- Fresh thyme or chives (for garnish)
Directions
- Prepare the potatoes – Peel and cut the potatoes into chunks. Boil in salted water until fork-tender, about 15-20 minutes. Drain well.
- Mash the potatoes – Use a potato masher or ricer to achieve a smooth texture. Avoid overmixing to prevent gumminess.
- Heat the cream mixture – In a saucepan, warm the heavy cream, milk, butter, and garlic until melted and combined.
- Mix into potatoes – Gradually pour the warm cream mixture into the mashed potatoes, stirring until smooth and creamy. Season with salt, pepper, and a pinch of nutmeg.
- Assemble the gratin – Transfer the mashed potatoes to a greased baking dish. Sprinkle Parmesan and Gruyère cheese on top. Add breadcrumbs if using.
- Bake – Preheat oven to 375°F (190°C). Bake for 20-25 minutes until the top is golden and bubbly.
- Garnish and serve – Let cool for a few minutes before garnishing with fresh thyme or chives. Serve warm.
Servings and Timing
- Servings: 6-8
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
Variations
- Bacon and Cheese Gratin – Add crumbled bacon between layers for extra flavor.
- Herb-Infused Gratin – Mix in rosemary, thyme, or chives for a fragrant twist.
- Truffle Mashed Potato Gratin – Drizzle with truffle oil before serving for a gourmet touch.
- Lighter Version – Use half-and-half instead of heavy cream and reduce the cheese.
Storage/Reheating
- Refrigeration – Store leftovers in an airtight container for up to 3 days.
- Freezing – Freeze unbaked gratin for up to 2 months. Thaw overnight before baking.
- Reheating – Warm in a 350°F (175°C) oven for 15 minutes, or microwave in short intervals.
FAQs
Can I make this dish ahead of time?
Yes, assemble the gratin and refrigerate it unbaked for up to 24 hours. Bake when ready to serve.
What type of potatoes work best?
Yukon Gold potatoes provide a creamy texture, while Russets create a fluffier consistency.
How do I prevent my mashed potatoes from becoming gluey?
Use a potato ricer or masher and avoid overmixing, which can make the potatoes gummy.
Can I add extra cheese to the filling?
Absolutely! Mixing cheese into the mashed potatoes enhances the flavor.
What can I serve with this gratin?
It pairs well with roasted meats, grilled chicken, or sautéed vegetables.
Can I make this gratin without cheese?
Yes, simply skip the cheese or replace it with a dairy-free alternative.
How do I get a crispier topping?
Use breadcrumbs mixed with melted butter for an extra crunchy crust.
Can I use milk instead of cream?
Yes, but the texture will be slightly less rich. Whole milk works best as a substitute.
Is this dish gluten-free?
Yes, if you omit breadcrumbs or use gluten-free alternatives.
Can I use a hand mixer to mash the potatoes?
A hand mixer can work, but be careful not to overbeat the potatoes, as it can make them gluey.
Conclusion
Creamy mashed potato gratin is a decadent, comforting side dish that elevates classic mashed potatoes with a crispy, cheesy topping. Whether for a special occasion or a cozy dinner, this dish is sure to be a crowd-pleaser. With simple ingredients and easy preparation, it’s a must-try recipe for any home cook.
Print
- Total Time: 40 mins
- Yield: 4–6 servings 1x
Description
Creamy Mashed Potato Gratin is the ultimate comfort dish, combining smooth mashed potatoes with a crispy, golden-baked top. A perfect side for any meal!
Ingredients
- 4 large potatoes, peeled and boiled
- 1/2 cup butter
- 1 cup heavy cream
- 1/2 cup Parmesan cheese
- 1/2 tsp salt
- 1/2 tsp black pepper
- 1 tsp parsley
Instructions
- Preheat oven to 375°F (190°C).
- Mash boiled potatoes with butter, cream, salt, and pepper.
- Spread in a baking dish and sprinkle with Parmesan.
- Bake for 25 minutes until golden brown.
- Garnish with parsley and serve hot.
Notes
- Add garlic or cheese for extra flavor.
- Serve with roasted meat or vegetables
- Prep Time: 15 mins
- Cook Time: 25 min
- Category: Side Dish
- Method: Baking
- Cuisine: French