Twice-Cooked Air Fryer Fries

Tempo

25 min (10 first cook + 5 rest + 10 second cook)

Picante

Dificuldade

Fácil

Rende

4porções

Ingredientes

800g potatoes (Asterix or Inglesa — the larger, starchier varieties; do NOT use small new potatoes)

2 tbsp

neutral oil (canola, sunflower) or duck fat

1 tsp

coarse salt

Optional: ½ tsp paprika defumada or rosemary

For serving

Flaky salt (sal grosso ou Maldon)

Mayo, ketchup, or aioli

Modo de preparo

01**Cut.** Peel potatoes (or leave skin on for rustic). Cut into **1cm-thick batons** — about the thickness of a pencil. Even thickness matters.
02**Soak in cold water 30 minutes.** This removes surface starch — non-negotiable for crispy results. While they soak, preheat the basket air fryer to **160°C**.
03**Drain and dry thoroughly.** Tip soaked fries into a clean kitchen towel. Pat dry. Wet fries = soggy fries.
04**First fry — 160°C, 10 min.** Toss the dried fries with 1 tbsp oil and ½ tsp salt. Spread in single layer in basket. Cook 10 minutes at 160°C. Shake basket halfway through. Fries should be **pale, soft, fully cooked through** — not browned. This is the "blanch" stage.
05**Rest 5 minutes** outside the air fryer. Let them cool slightly — this is part of the technique. The cooled exterior tightens, which is what allows the crisp shell to form during the second cook.
06**Second fry — 200°C, 10-12 min.** Crank temperature to 200°C (let basket preheat 1 min). Toss fries with the remaining 1 tbsp oil. Spread in basket. Cook 10-12 minutes, shaking every 4 minutes, until **deep golden and audibly crisp** — they should rattle in the basket.
07**Salt immediately.** Tip onto a plate or paper towel. Sprinkle generously with flaky salt while still hot — the surface oil makes salt stick perfectly.

Twice-Cooked Air Fryer Fries

The Belgian-Heston twice-cooked technique adapted for the basket air fryer. The two-stage approach (low temp to cook through, then high temp to crisp) gives fluffy interiors and shatteringly crisp exteriors that no single-temp recipe matches. Better than most restaurant fries.

Notes

The 30-min soak. Don't skip it. Surface starch + heat = gluey, not crisp. The soak is the difference.
Single layer. If you crowd, fries steam each other. Do two batches if needed; reheat the first batch in the second-fry stage at the end.
Variety matters. Asterix (the most common Brazilian fry potato) and Inglesa work great. Do NOT use sweet potato or small waxy new potatoes for this — they don't crisp the same way (sweet potato fries are a different recipe with a different technique).
Fat quality. Neutral oil works fine. Duck fat is exceptional if you have it. Olive oil burns at 200°C — don't use.
Freezer kit version: do steps 1-5 (the first cook + rest + cool fully). Open-freeze on a tray. Once frozen, transfer to a bag. Stores 3 months. Cook from frozen at 200°C for 14-16 min, no second oil needed (oil from first cook is enough).
Variations:
- Garlic-parmesan: in the last 2 min of the second cook, add 2 grated garlic cloves and 30g grated parmesan to the basket. Toss; cook 2 min. Tossed at end with parsley.
- Truffle: drizzle 1 tsp truffle oil after the second cook. Don't cook with truffle oil — it loses character. Apply at end.
- Belgian-style: serve with mayo, not ketchup.
Don't double-fat. 2 tbsp total is the right amount. More oil = greasy, not crispier.
Storage: fries don't keep. Eat within 5 minutes of the second cook. They go limp fast.