Start by peeling and chopping your potatoes into fry shapes. You can make your fries as thick or as thin as you want, mine were around ¼ inch thick.

Fill a large bowl with some cold water, add some ice into this and also about 2 teaspoons of salt. Add your fries into this, then leave this in your fridge for 1 hour.

After an hour, drain the water, then pat your fries dry with some paper towels. You want them to be completely dry.

Add your dry fries into a bowl, add the corn flour and mix until they're all coated. The amount of corn flour you need depends on how many fries you have got from your potatoes. You might not need as much, or you might need more, you just want them all to have an even coat of corn flour on them.

In a pot, heat your oil to 150c.

Add your fries into this and fry for around 8 minutes. Make sure to fry them in batches, you don't want to overcrowd your pot.

After 8 minutes, they should have gained no colour, we want this. Take them out and let them drain on a wire rack.

Heat your oil to 200c.

Add your fries into this and fry them until they become golden and crispy. Again, do this in batches.

Let these drain on a wire rack, if you want to add some salt, sprinkle it on at this point

Melt your butter, then mix in the minced garlic and chilli flakes. I did this in a wok, but you can also just melt the butter in a bowl, in your microwave.

Add your fries into this and toss until coated. Now add as much parmesan and parsley as you want.