Step 1

Peel then grate the potatoes using a box grater, trying to get nice long strands if you can.

Step 2

Grab handfuls of potato and squeeze out excess liquid, then place in bowl. This helps make the potato crispier (otherwise all that water has to steam out in the pan).

Step 3

Add butter, salt and pepper then toss. Don't worry if your potatoes go brown/reddy - it's still safe to eat, and turns white again when cooked.

Step 4

Melt half the clarified butter in a 26cm / 10.5' (or thereabouts) non-stick pan or skillet over medium low heat. Shallow non-stick pan with sloped sides is best for easy rosti removal.

Step 5

Place the potato in pan, but do not pack down. Use rubber spatula to tidy the edges, then lightly pat down to even surface.

Step 6

Cook first side: Cook 12 minutes until underside is very golden and crispy, lifting edge with rubber spatula to check. If by 8 minutes it is not going golden, increase heat.

Step 7

TIP: Insurance policy - If you didn't use a non stick pan, slide the rubber spatular underneath all the way to the middle and run it around, to be 100% sure nothing is stuck before attempting flip.

Step 8

Flip: Cover pan with a round wooden board with a handle (or anything similar with a handle, Note 3). Holding the handle of the board, flip quickly - and with confidence!

Step 9

Cook second side: Melt remaining clarified butter in the pan, then slide the rosti back in and cook for 12 minutes until golden crispy, and there is no resistance when a knife is inserted into the middle.

Step 10

Slide onto cutting board, cut into 4 or 6 wedges and serve immediately!

Step 11

Use 25g / 1 1/2 tbsp clarified butter for each batch, medium heat in a non stick pan. Place potato in rounds in a skillet, around 8cm / 3' wide, 1.5 - 2cm / 2/3' thick (without patting down). Cook 5 minutes until deep golden and crispy, flip, and cook another 5 minutes until done.

Step 12

Transfer to rack set over tray in a 120°C/250°F oven until ready to serve.