Truffle Parmesan Fries

Featured in: Warm Bakes

Transform humble potatoes into an elegant side dish by baking them until golden and crispy, then tossing with luxurious truffle oil and freshly grated Parmesan cheese. This 50-minute vegetarian side combines rustic comfort with gourmet flavors. Soak cut potatoes to remove excess starch for maximum crispiness, bake until golden, then finish with aromatic truffle oil, Parmesan, and fresh parsley. Perfect served hot alongside main courses or enjoyed as a decadent snack.

Updated on Sun, 18 Jan 2026 14:44:00 GMT
Golden crispy baked fries tossed with aromatic truffle oil and freshly grated Parmesan cheese, garnished with bright parsley for an easy savory side dish. Save
Golden crispy baked fries tossed with aromatic truffle oil and freshly grated Parmesan cheese, garnished with bright parsley for an easy savory side dish. | moonthyme.com

My neighbor brought over a tiny bottle of truffle oil one evening, insisting I try it on something simple. I had potatoes sitting on the counter, so I figured fries were the safest bet. The moment I drizzled that oil and tossed in some Parmesan, my kitchen smelled like a bistro I couldn't afford. Now it's the side dish I make when I want to feel fancy without actually trying.

I made these for a casual dinner party once, and they disappeared faster than the main course. People kept wandering back into the kitchen asking if there were more. One friend even texted me the next day for the recipe, which never happens. It was the truffle oil that did it, but I let them think I had some secret technique.

Ingredients

  • Russet potatoes: Their high starch content makes them fluffy inside and crispy outside, and soaking them really does make a difference in texture.
  • Olive oil: This coats the fries before baking and helps them crisp up without needing a deep fryer.
  • Kosher salt: The larger crystals stick better to the fries and season more evenly than table salt.
  • Black pepper: Freshly ground adds a little bite that balances the richness of the truffle oil and cheese.
  • Truffle oil: A little goes a long way, this is what makes the fries smell and taste expensive.
  • Parmesan cheese: Freshly grated melts better and tastes sharper than the pre-shredded stuff in a bag.
  • Fresh parsley: It adds a pop of color and a fresh note that cuts through all the richness.

Instructions

Prep the oven and pan:
Set your oven to 425°F and line a baking sheet with parchment paper so the fries don't stick. This also makes cleanup way easier.
Soak the potatoes:
After cutting them into fries, let them sit in cold water for 30 minutes to pull out excess starch. Dry them completely with a towel or they won't crisp up.
Toss with oil and seasoning:
In a big bowl, coat the fries with olive oil, salt, and pepper until every piece is covered. Don't skip this step or you'll end up with bland spots.
Bake until golden:
Spread them out in a single layer and bake for 30 to 35 minutes, flipping halfway through. They should be golden and crispy on the edges.
Toss with truffle oil:
As soon as they come out of the oven, move them to a bowl and drizzle the truffle oil while they're hot. Toss them around so every fry gets coated.
Add Parmesan and parsley:
Sprinkle the cheese and parsley over the fries and toss again. Taste one and add more salt if you want.
Serve immediately:
These are best when they're hot and crispy right out of the bowl.
Freshly cooked Truffle Parmesan Fries served hot, with a rich umami aroma and melted cheese on golden potatoes for a decadent snack. Save
Freshly cooked Truffle Parmesan Fries served hot, with a rich umami aroma and melted cheese on golden potatoes for a decadent snack. | moonthyme.com

There's something about pulling these out of the oven and hearing everyone gather around the counter before I even plate them. It's become a little ritual now, that moment when the truffle smell hits and someone always says it smells like a fancy restaurant. I never get tired of that reaction.

Getting the Crispiest Fries

The soaking step isn't just fussy chef talk, it actually pulls out the starch that makes fries gummy. I tried skipping it once to save time and regretted it immediately. Pat them dry like your life depends on it, because moisture is the enemy of crispiness. If you want them even crispier, you can toss them in the oven for an extra five minutes or use an air fryer instead.

Truffle Oil Tips

A little truffle oil is all you need, it's potent and too much can taste artificial or overwhelming. I learned this the hard way after dumping half a bottle on a batch and making them taste like perfume. White truffle oil is more delicate and earthy, while black truffle oil is a bit stronger and more pungent. Either works, just go easy and taste as you go.

Serving and Pairing Ideas

These fries are great on their own, but they're even better with a side of garlic aioli or a tangy lemon mayo for dipping. I've served them alongside burgers, grilled steak, and even just a simple green salad when I want something indulgent. They also work as a fancy appetizer if you pile them on a platter and let people grab them with their hands.

  • Try them with a fried egg on top for breakfast.
  • Swap the Parmesan for Pecorino Romano if you want a sharper, saltier kick.
  • Sprinkle a little smoked paprika on top for extra depth.
Russet potato fries tossed in truffle oil and Parmesan, sprinkled with parsley, ready to be dipped in creamy garlic aioli or ketchup. Save
Russet potato fries tossed in truffle oil and Parmesan, sprinkled with parsley, ready to be dipped in creamy garlic aioli or ketchup. | moonthyme.com

These fries have become my go-to whenever I want to make something feel special without spending hours in the kitchen. They're proof that a little truffle oil and good cheese can turn the simplest things into something worth remembering.

Recipe FAQ

How do I achieve extra-crispy fries?

Soak the cut potatoes in cold water for 30 minutes to remove starch, then pat them completely dry. For maximum crispiness, use an air fryer or deep-fry in hot oil instead of baking. If baking, ensure a single layer on the sheet and flip halfway through cooking.

Can I prepare fries ahead of time?

You can cut and soak potatoes up to 4 hours in advance, storing them in the refrigerator. However, serve the finished dish immediately after tossing with truffle oil and Parmesan to maintain optimal texture and temperature.

What's the difference between white and black truffle oil?

White truffle oil offers a more delicate, garlicky aroma with subtle earthiness, while black truffle oil provides a bolder, more robust flavor. Choose based on personal preference and how dominant you'd like the truffle notes to be in your dish.

Are there substitutes for Parmesan cheese?

Pecorino Romano works beautifully as a substitute, offering a sharper and slightly saltier taste. Grana Padano or Asiago are also excellent alternatives that provide similar nutty complexity with varying intensity levels.

Is this suitable for dietary restrictions?

This dish is naturally vegetarian. It contains dairy (Parmesan cheese), so it's unsuitable for vegans. Always check truffle oil labels for potential allergen cross-contamination and confirm cheese ingredients for specific dietary concerns.

What pairs well with these fries?

Serve alongside aioli, garlic mayo, or classic ketchup for dipping. These sophisticated fries complement grilled steak, roasted chicken, or fish. They also make an excellent standalone appetizer or gourmet snack for entertaining.

Truffle Parmesan Fries

Golden crispy fries elevated with truffle oil and fresh Parmesan cheese. An elegant, savory side that's surprisingly simple to make.

Prep Time
15 min
Time to Cook
35 min
Total Duration
50 min
Created by Lydia Brooks

Type Warm Bakes

Skill Level Easy

Cuisine American

Portions 4 Serving Size

Diet Info Vegetarian Friendly, No Gluten

What You'll Need

Potatoes

01 1.5 lbs russet potatoes, peeled and cut into fries
02 2 tablespoons olive oil
03 1 teaspoon kosher salt
04 0.5 teaspoon freshly ground black pepper

Seasoning & Garnish

01 2 tablespoons truffle oil
02 0.33 cup freshly grated Parmesan cheese
03 2 tablespoons fresh parsley, finely chopped
04 Salt to taste

How to Make It

Step 01

Prepare baking surface: Preheat oven to 425°F. Line a large baking sheet with parchment paper.

Step 02

Soak potatoes: Soak cut potatoes in cold water for 30 minutes to remove excess starch. Drain thoroughly and pat dry with a clean kitchen towel.

Step 03

Season fries: In a large bowl, toss fries with olive oil, kosher salt, and black pepper until evenly coated.

Step 04

Bake potatoes: Spread fries in a single layer on prepared baking sheet. Bake for 30 to 35 minutes, flipping halfway through, until golden and crispy.

Step 05

Apply truffle oil: Remove fries from oven and immediately transfer to a large bowl. Drizzle with truffle oil and toss well to coat.

Step 06

Finish with cheese and herbs: Sprinkle grated Parmesan and parsley over fries, then toss again. Season with additional salt as desired.

Step 07

Serve: Transfer to serving dish and serve immediately while hot.

Tools Needed

  • Chef's knife
  • Large mixing bowl
  • Baking sheet
  • Parchment paper
  • Box grater or microplane

Allergen Details

Review every ingredient for allergens and ask a medical professional when unsure.
  • Contains milk from Parmesan cheese
  • Verify truffle oil and cheese labels for potential allergen cross-contamination

Nutrition Details (each serving)

These details are for reference only, and shouldn't replace healthcare advice.
  • Energy: 290
  • Fats: 15 g
  • Carbohydrates: 33 g
  • Proteins: 6 g