Truffle Parmesan French fries

Ingredients

• 1 large (340–397 g; 12–14 oz)russet potato
• 10 ml (2 teaspoons)neutral oil
• 10 ml (2 teaspoons), or to tastetruffle oil
• 1 tablespoon (about 5 g), or more to tastegrated Parmesan
• 1 tablespoon (about 4 g)chopped parsley
• to tastelemon zest
• to tastesea salt
• 1.9 litres (2 quarts)water, for soaking

Instructions

1. 1

   Preheat the oven

   Preheat the Wonder Oven Pro to 190°C (375°F) on the air-fry setting.

2. 2

   Cut and soak

   Wash the potato and cut it into 6 mm (¼-inch) fries, leaving the skin on or peeling it as you prefer. Put them in a large heatproof bowl. Heat 1.9 litres (2 quarts) of water to 82°C (180°F), just below boiling, pour it over the fries so they are submerged, and leave them to soak for 10 minutes.

3. 3

   Dry the fries

   Drain the fries and spread them on a tray lined with kitchen paper. Pat them thoroughly dry to remove excess moisture.

4. 4

   Oil and arrange

   Toss the dried fries with the neutral oil until evenly coated. Arrange them in a single layer in the air-fryer basket, leaving space between them. Put the baking tray on the bottom rack to catch drips and place the basket on the middle rack.

5. 5

   Air-fry until crisp

   Air-fry for 14 minutes, or until the fries are golden and crisp. There is no need to turn them; the circulating heat cooks them evenly.

6. 6

   Toss and serve

   Drizzle the truffle oil into a large bowl, add the hot fries and toss to coat. Sprinkle over the Parmesan, parsley, lemon zest and sea salt, then toss again to season. Serve immediately.

What are truffle Parmesan fries?

French fries are a familiar potato dish, commonly associated with Belgian and French cooking traditions. This version gives the crisp, golden fries a savoury finish with truffle oil and Parmesan, brightened by parsley and lemon zest.

The method pairs a short hot-water soak with air-frying. The soak helps soften the potato inside, while spacing the fries out lets the hot air reach their surfaces.

Nutrition and macros by portion

The nutrition label shows one serving as written: 235 calories, 4g protein, 30g carbs, 11g fat.

The potato supplies most of the carbohydrate, while the neutral oil and truffle oil contribute most of the fat. Parmesan adds a little protein and fat; the exact figures vary with the potato size and how much oil and salt you use. Pair a serving with a source of protein and a green salad or vegetables for a more balanced plate.

Choosing the potato and oils

Russet potato: its starchy texture is well suited to fries, giving you a fluffy centre beneath the crisp exterior. Cut the fries to a consistent 6 mm thickness so they cook at a similar rate.

Neutral oil: use this to coat the fries before cooking without adding a competing flavour. Truffle oil goes on after cooking, preserving its aroma and letting it cling to the hot fries.

Why soak the fries?

Hot-water soak: submerging the cut potato for 10 minutes is intended to help the interior turn fluffy and shorten the cooking time. Keep the water at 82°C rather than bringing it to a boil.

Thorough drying: drain the fries and pat them carefully before adding oil. Wet surfaces can hinder browning, so take time to dry them well.

Getting an even crisp

Single layer: arrange the fries with a little space between each one so the circulating air can brown them. If they overlap, they are more likely to soften than crisp.

Doneness: check at 14 minutes for a golden colour and crisp exterior. The recipe does not call for turning the fries during cooking.

Finishing with truffle and Parmesan

Truffle oil: toss it with the fries only after they come out of the air fryer. Start with the stated amount and adjust to taste, as its aroma can be pronounced.

Fresh finish: add the Parmesan, parsley, lemon zest and salt while the fries are hot, then toss again. The cheese and seasonings distribute more evenly this way.

Serving the fries

Serve them immediately, when their surfaces are at their crispest. They work alongside a burger, a sandwich or a simple salad, or can be shared as a snack.

A creamy dip can complement the truffle and Parmesan, while a crisp green salad adds freshness to the plate.

Recipe notes & tips

• Cut the potato into evenly sized fries so they finish cooking at about the same time.
• Use a heatproof bowl for the hot soaking water.
• Pat the drained fries dry before coating them with oil.
• Leave room between fries in the basket to encourage browning.
• Add the truffle oil after air-frying so its aroma stays noticeable.
• Serve as soon as the fries have been tossed with their toppings.

Variations

• Extra lemon: add a little more zest at the end for a brighter finish.
• Garlic note: toss in a small amount of garlic powder with the salt.
• Herb swap: use chopped chives instead of parsley for a different fresh flavour.
• More Parmesan: add extra grated Parmesan to taste while the fries are hot.
• Peppery finish: add freshly ground black pepper with the other seasonings.

Common mistakes to avoid

• Uneven cuts: fries of different thicknesses cook at different speeds; aim for consistent 6 mm pieces.
• Skipping the drying: lingering water can make the fries less crisp; pat them thoroughly with kitchen paper.
• Crowding the basket: overlapping fries block airflow; arrange them in a single layer with gaps.
• Adding truffle oil before cooking: its aroma can fade with heat; toss it through the fries after air-frying.
• Waiting to serve: the fries soften as they stand; bring them to the table immediately after seasoning.

How to store

These fries are best eaten straight away. If needed, refrigerate leftovers in an airtight container for up to 2 days, then reheat in an air fryer until hot and crisp; the texture will be softer than freshly cooked fries.

Frequently asked questions