Fondue Mashed Potatoes (Pommes Aligot): The Cheesy Thanksgiving Side You Didn’t Know You Needed

Name: Fondue Mashed Potatoes
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: French
Ingredients: 1 lb. russet or Yukon gold potatoes, peeled and finely chopped; 2 tsp. kosher salt, plus more; 1 large clove garlic, grated; 3 Tbsp. unsalted butter; 2 Tbsp. dry white wine; 8 oz. finely grated Gruyère (about 2 cups); 4 oz. finely grated mozzarella; 1 cup heavy cream, warmed

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If you’ve ever dreamed about what would happen if cheese fondue and mashed potatoes had a delicious baby, let me introduce you to Fondue Mashed Potatoes, also known as pommes aligot. This dish is silky, rich, and impossibly cheesy—in the best way. Made with buttery potatoes, Gruyère, mozzarella, cream, and a splash of white wine, it’s a luxurious twist on your typical Thanksgiving side.

bowl of creamy mashed potatoes with butter on top

These mashed potatoes aren’t just creamy—they stretch into cheesy ribbons, giving you that dramatic, Instagram-worthy pull. They’re perfect for impressing your holiday guests, yet surprisingly simple to make. Whether you’re updating your classic Thanksgiving lineup or just in the mood for cozy comfort food, this is the dish to try.

Jump to:

Why You’ll Love This Recipe
Taste and Texture
Ingredients and Substitutions
How to Make Fondue Mashed Potatoes
Tips for the Best Fondue Mashed Potatoes
Serving Ideas for Thanksgiving
How to Store and Reheat
Common Questions
Easy Variations
Related Recipes You’ll Love
Stay Inspired on Pinterest
Final Thoughts
Fondue Mashed Potatoes

Why You’ll Love This Recipe

A New Take on Mashed Potatoes

Fondue mashed potatoes are bold, buttery, and rich. It’s the perfect marriage between two comfort food classics, giving you the flavor of fondue with the soul of mashed potatoes.

Thanksgiving-Worthy Comfort

This side dish fits beautifully on your Thanksgiving table. It’s decadent, special, and just different enough to wow guests without straying too far from tradition.

Family-Friendly and Crowd-Pleasing

There’s something about gooey cheese and creamy potatoes that makes everyone happy—kids, adults, picky eaters—you name it.

Taste and Texture

Think ultra-smooth mashed potatoes with a melt-in-your-mouth quality. The garlic, Gruyère, and mozzarella blend into a rich, nutty, and buttery profile. The texture is stretchy and elastic, almost like pulling mozzarella from a fresh slice of pizza—only silkier and spoonable.

Ingredients and Substitutions

What You’ll Need

1 lb. russet or Yukon gold potatoes, peeled and finely chopped
2 tsp. kosher salt, plus more to taste
1 large clove garlic, grated
3 tablespoon unsalted butter
2 tablespoon dry white wine
8 oz. finely grated Gruyère (about 2 cups)
4 oz. finely grated mozzarella
1 cup heavy cream, warmed

Ingredient Tips

Potatoes: Russet gives you fluff; Yukon Gold gives you creaminess. Either works beautifully.
Cheese: Use real-deal Gruyère for that nutty depth. Mozzarella helps create the signature cheese pull.
Cream: Full-fat, warmed before adding to help everything blend smoothly.
Wine: A dry white like Sauvignon Blanc or Chardonnay brings balance.

Easy Substitutions

Swap Gruyère for Emmental, Fontina, or even a sharp white cheddar.
No white wine? Use veggie or chicken broth with a squeeze of lemon for brightness.
For a lower-lactose version, use lactose-free cheese and cream.

creamy pommes aligot pulled from pot with melted cheese strands

How to Make Fondue Mashed Potatoes

Boil the Potatoes
Add chopped potatoes and 2 teaspoon salt to a saucepan. Cover with cold water and bring to a boil. Cook until fork-tender, about 15–18 minutes.
Rice the Potatoes
Drain and pass the potatoes through a ricer or food mill back into the pot.
Add Flavor
Over medium heat, stir in grated garlic, butter, and white wine. Cook for 2 minutes, until the wine has nearly evaporated and butter is melted.
Cheese It Up
Gradually stir in the cheeses and warm cream, whisking constantly until the mixture is smooth and stretchy.
Season to Taste
Add more salt if needed and serve immediately for maximum cheesiness.

Tips for the Best Fondue Mashed Potatoes

Use a Potato Ricer

It’s the key to that smooth, lump-free texture that feels restaurant-quality.

Warm the Dairy

Cold cream or cheese can make the mixture seize. Warm everything for a silky finish.

Don’t Rush the Cheese

Add it slowly, stirring as you go. High heat can break the cheese sauce, so keep it gentle.

Serving Ideas for Thanksgiving

pot of cheesy fondue mashed potatoes being lifted with a spoon

What to Serve It With

Roast turkey or glazed ham – the richness of the potatoes pairs perfectly with savory meats.
Vegetarian main dishes like lentil loaf or stuffed squash.
Try it with this Mashed Potato Casserole Recipe for a double-potato dinner (https://bakewithlina.com/mashed-potato-casserole-recipe/)

Garnish Ideas

A pat of butter melting on top
A sprinkle of fresh chives or cracked black pepper
Drizzle with truffle oil for extra elegance

Beverage Pairings

Wine: White Burgundy or Pinot Gris
Cocktails: Sparkling apple cider or a classic Champagne cocktail
Non-Alcoholic: Rosemary lemonade or sparkling cranberry juice

How to Store and Reheat

Storage Tips

Store leftovers in an airtight container in the fridge for up to 3 days.
Freeze only if needed—texture may change slightly after thawing.

Best Reheating Method

Reheat gently over low heat, stirring often.
Add a splash of cream or milk to loosen it up.
You can also reheat using a double boiler to prevent any cheese from breaking.

Common Questions

Can I make this ahead for Thanksgiving?

Yes! Make it the day before, then gently reheat on the stove with a little extra cream to bring it back to life.

Can I make it stretchier, more like fondue?

Definitely! Just add an extra cup of cream or broth and increase the cheese by 50% for a more sauce-like consistency.

What if I don’t have a ricer?

You can mash by hand, but you won’t get that silky-smooth texture. A food mill is the next best thing.

Easy Variations

wooden spoon stretching cheesy mashed potatoes from saucepan

Make It Vegan

Use dairy-free cheese (like Miyoko’s or Violife), vegan butter, and coconut cream.
Substitute veggie broth for the wine.

Add Seasonal Flavor

Mix in roasted garlic or caramelized onions.
Stir in a spoonful of cranberry sauce or top with crispy sage for a Thanksgiving twist.

Want More Traditional?

If you’re looking for a classic mashed potato option, check out this Best Mashed Potatoes Recipe for Thanksgiving

Roasted Sweet Potato Salad with Feta – a lighter, tangy companion to creamy potatoes
Mashed Potato Casserole – the ultimate make-ahead holiday side
Best Mashed Potatoes for Thanksgiving – buttery, fluffy, and perfect every time

Stay Inspired on Pinterest

Looking for more cozy Thanksgiving side dishes and potato recipes? Follow along for more holiday food ideas on Pinterest: https://www.pinterest.com/bakewithlina/

Final Thoughts

Fondue mashed potatoes are the ultimate upgrade to your Thanksgiving menu—creamy, stretchy, and oh-so-satisfying. Whether you’re a cheese lover, a mashed potato purist, or just ready to wow your guests with something different, this recipe is a total win. Save it, pin it, and don’t forget to tag me when you make it!

Ready to turn up the comfort food this holiday? This dish is your new favorite side.