Air Fryer Recipe

Crispy Rosemary Fries

  • Prep: 10 min
  • Cook: 15 min
  • Total: 25 min
  • Serves: 4
  • Category: Snacks
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Crispy Rosemary Fries

Crispy rosemary fries make a simple, tasty snack or side, and they’re especially good in the air fryer. Fragrant rosemary and crisp-edged potatoes come together for a lighter take on classic fries.

Ingredients

  • 2 large potatoes (Maris Piper or Yukon Gold)
  • 2 tablespoons olive oil
  • 1-2 sprigs of fresh rosemary, finely chopped
  • 1 teaspoon garlic powder
  • ½ teaspoon sea salt
  • ¼ teaspoon black pepper

Method

  1. Peel the potatoes if you like, then cut them into ¼ inch thick sticks.
  2. Soak the potato sticks in cold water for at least 30 minutes, then drain well and pat them dry.
  3. In a large bowl, toss the potato sticks with the olive oil, rosemary, garlic powder, salt, and pepper.
  4. Preheat the air fryer to 200°C (390°F) for about 5 minutes.
  5. Arrange the potatoes in the air fryer basket in a single layer and cook for 15-20 minutes, shaking halfway through, until golden brown and crisp.
  6. Remove the fries, sprinkle with a little extra salt if needed, and serve hot.

Why this works in an air fryer

Soaking pulls surface starch from the cut potatoes, then thorough drying lets the oil form a thin film instead of steaming. At 200°C, rapid air movement dehydrates the exterior while the fluffy Maris Piper/Yukon Gold centres soften; finely chopped rosemary flavours the oil and adheres better than whole needles.

Equipment notes

Timing assumes a 4–6 litre basket with the fries in one loose single layer; smaller baskets need cooking in batches. In a single-drawer air fryer, shake and redistribute from the cooler centre to the hotter edges halfway. In a dual-zone model, split evenly between drawers and check 2–3 minutes earlier, as the shallower load browns faster.

Common pitfalls

  • Fries look pale and bend rather than snap at 15 minutes? They were too wet or crowded; pat drier next time and give this batch 3–5 more minutes in a single layer.
  • Rosemary is blackening before the potatoes brown? The pieces are too large or sitting exposed; chop it finer, toss well in the oil, or add half the rosemary after the first shake.
  • Patchy browning with dark tips and soft sides? The sticks are uneven; trim to consistent ¼ inch thickness and turn the basket contents more thoroughly at halfway.
  • Garlic tastes bitter with dusty brown specks? Garlic powder has scorched on dry surfaces; make sure the potatoes are lightly oil-coated before seasoning and reduce to 190°C if your air fryer runs hot.

Variations & substitutions

  • Use skin-on potatoes for a more rustic fry; the skins brown faster, so check the thinnest pieces a couple of minutes early.
  • Swap olive oil for rapeseed oil for a more neutral flavour and slightly cleaner high-heat browning.
  • Use dried rosemary instead of fresh, but reduce to about ½ teaspoon and crush it first, as dried needles can taste woody and scorch more readily.
  • Add 1 teaspoon finely grated Parmesan after cooking rather than before, so it melts on the hot fries without burning in the basket.

Storage & reheating

Keep cooled fries in the fridge for up to 2 days, then reheat in the air fryer at 190°C for 4–6 minutes in a single layer until hot and crisp again.

Nutrition

Calories: 250

Equipment you'll need

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