Truffle Fries (Air Fryer or Oven)

Whether you opt for white truffle oil or black truffle oil and use frozen or homemade french fries, this easy recipe ensures your homemade fries achieve that coveted crispy exterior and rich, earthy truffle flavor. 

The key is a delicate drizzle of truffle oil tossed with the piping hot fries straight from the oven. Remember a little goes a long way! Add a sprinkling of Parmesan and a touch of truffle salt for an extra flavor boost. And you could also dip them in In-N-Out Sauce for those who like to dunk.

Skip the deep fryer and make these crispy truffle fries in the air fryer or your oven for an indulgent yet simple side dish everyone will love.

How to make homemade truffle fries in the air fryer.

1. Cut potatoes into fry shapes and soak in ice water for 5 minutes, then pat dry.
2. Toss the cut fries with olive oil.
3. Air fry the oiled fries at 375°F for 35-40 minutes until crispy.
   
4. While fries cook, prepare toppings: grate Parmesan and chop parsley.
   
5. Once the fries are done, place in a bowl and drizzle with truffle oil. Gently toss to coat.
6. Season the truffle-tossed fries with salt.
   
7. Transfer to a platter and top with grated Parmesan and chopped parsley. Serve hot.
   

Parmesan Truffle Fries Made With Frozen French Fries

Serve the Parmesan truffle fries fresh out of the oven while hot and fragrant. The high oven temperature helps re-crisp the frozen fries before tossing in the flavorful truffle oil and Parmesan.

1. Preheat your oven to 425°F (218°C). Arrange the frozen french fries in a single layer on a large baking sheet lined with parchment paper. 
2. Bake the frozen fries for 20-25 minutes, shaking the pan halfway, until golden brown and crispy.
3. While the fries bake, grate the Parmesan cheese and chop the fresh parsley.
4. Remove the fries from the oven and transfer them to a large bowl. Drizzle with 2-3 tablespoons of truffle oil.
5. Using tongs or two spoons, gently toss the hot fries with the truffle oil until evenly coated. Season with salt to taste.
6. Transfer the truffle-tossed fries back to the baking sheet and spread into an even layer.
7. Sprinkle the freshly grated Parmesan and chopped parsley over the top. Return to the oven for 2-3 minutes until the cheese is melted.

Do truffle fries actually have truffle?

No, most truffle fries do not actually contain any pieces or shavings of real truffles. They get their truffle flavor from truffle oil, which is an olive oil that has been infused with molecules that mimic the aroma and flavor of truffles.

Real truffles are extremely expensive and rare, so using actual truffles on something like french fries would make them prohibitively costly for most restaurants and food vendors. The truffle oil provides that distinctive truffle aroma and taste without having to use the real fungus.

Some higher-end restaurants may offer truffle fries made with shavings of real black or white truffles on top as a premium item. But for the vast majority of truffle fry offerings, it's just regular french fries tossed with truffle-flavored olive oil rather than containing any part of the actual truffle itself.

What can I substitute for the truffle oil?

The truffle oil provides the most authentic flavor, but these substitutes can give you those beloved earthy, rich truffle notes. If you don't have truffle oil, there are a few substitutions you can use to still get that truffle flavor in your fries:

1. Truffle salt or truffle powder - Look for truffle salt or truffle powder/seasoning in the spice aisle. A little goes a long way in providing that distinctive truffle aroma and taste.
2. Dried porcini mushroom powder - Grind up some dried porcini mushrooms into a powder. Porcinis have an earthy, umami flavor somewhat reminiscent of truffles.
3. Mushroom seasoning blend - Use a mushroom seasoning blend that contains dried porcini or other umami mushroom varieties.
4. Finely grated Parmesan cheese -Parmesan has a nutty, savory flavor that pairs well with mushrooms/truffle flavors.
5. Garlic powder and onion powder - These can help enhance the savory, earthy notes when combined with the mushroom powder/seasoning.