ultimate vinegar crispy fries

Finally, here it is – The perfect french fries recipe! Based on a ground-breaking method from the legendary Kenji López-Alt’s The Food Lab, these hot chips are so crispy they stay that way even after they’ve gone cold. It’s rare to find fries this good even at up-market bistros!

There’s nothing more deflating than going to all the effort of making your own fries from scratch, only to find they start losing crispiness before they even hit the table. Which is what happens if you use the standard way of cooking homemade fries – soaking in water followed by a double fry.

Well, it’s taken me years but with the help of the impressively thorough french fry research documented in Kenji López-Alt’s The Food Lab, Chef JB and I have finally nailed down the recipe for the perfect homemade french fries. Fluffy on the inside, crispy on the outside – and stays crispy well beyond the time it takes to eat the fries and, say, a big juicy Cheeseburger. The ideal french fry!

Ingredients

▢1 kg / 2 lb (3 – 4) floury potatoes (Note 1, Aus: Sebago/dirt aka brushed, US: Russet/Idaho, UK: Maris Piper, King Edward)
▢2 tbsp white vinegar (Note 2)
▢1 tbsp cooking salt / kosher salt (Note 3)
▢1 litre/quart canola/vegetable oil
SEASONING (CHOOSE):
▢Salt – table salt or sea salt flakes
▢Shaker fries seasoning
▢Rosemary salt
▢Nori salt (coming soon)

Instructions

Cut: Peel the potatoes. Cut into 6 mm / 1/4″ French fries using a serrated knife. (Note 4)
Keep cut fries submerged in a bowl of water to prevent them from going brown while you cut the remainder. (No need for actual soaking beyond this.)
Rinse: Transfer potatoes to a colander and rinse under tap water for 15 – 20 seconds.
Simmer: Place fries in a large pot with 2 litres/quarts of cold tap water, vinegar and salt. Bring to a boil over high heat then immediately reduce stove to low so the surface is rippling gently (Note 5), not big bubbles. Cook for 10 minutes then carefully remove using a slotted spoon into a colander (do not tip into colander, fries will break).
Dry 5 min: Spread the fries on 2 tea towel lined trays. Leave to steam dry for 5 minutes.
Pot: Pour 3 cm / 1.2″ of oil in a pot that is at least 10cm/4″ high (⚠️for safety, need at least 7 cm / 3″ from oil surface to rim of pot, Note 6)
Separate the fries into 3 Batches (for cooking).
FRY #1

Heat oil to 205°C/400°F over medium high heat.
⚠️10 sec pause (Note 7): Lower 1/3 of Batch 1 fries into the oil using a slotted spoon. WAIT 10 seconds, add another 1/3 of the fries, wait 10 seconds, then add the remaining Batch 1 fries.
50 sec fry: Fry for 50 seconds, moving them around once or twice. Then remove with a slotted spoon onto 2 paper towel lined trays, spread out in a single layer. The fries will still be white and floppy.
Repeat Fry #1 with Batches 2 and 3, ensuring the oil is back at 205°C/400°F before cooking.

FRY #2
30 min cool: Leaves fries to cool for 30 minutes.
Line a large bowl with paper towels – for draining and tossing.
Fry #2: Heat oil to 205°C/400°F. Fry half the French fries for 4 minutes, moving them around twice, or until golden brown and crispy. Drain in the lined bowl, then repeat with remaining fries.
SEASON & SERVE!
Sprinkle fries with salt or seasoning or choice. (Note 8) Toss and serve!
Fries will stay crispy even once cool. See note for large batch cooking tip.