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Crispy Potato Rosti with Spring Onions — finished dish
vegetarian

Crispy Potato Rosti with Spring Onions

A quick and tasty rosti recipe to use up potatoes, perfect for a light spring meal or side dish.

Total time

35 min

15 prep + 20 cook

Serves

2

Difficulty

easy

Cuisine

British

Per serving

350 kcal

P: 7g · C: 40g · F: 18g

Your potatoes are looking a bit sad and you need a plan before they go any further. This simple rosti is the answer. It’s a fantastic way to give them a new lease of life. This is best made when you've got a few spuds lurking, maybe a couple of spring onions too. Serve it for a light supper with a dollop of soured cream and some smoked salmon, or as a side dish to grilled fish.

Why this works

The key to a good rosti is to get as much moisture out of the grated potato as possible. Excess water steams the potato shreds instead of frying them, leading to a greasy, limp result. Squeezing the grated potato firmly in a clean tea towel or muslin cloth removes this excess liquid, allowing the starch to form a crispy crust when fried.

Ingredients

  • 400gPotatoesMaris Piper or King Edward work well
  • 4Spring onionstrimmed and finely sliced
  • 1 tbspPlain flour
  • 2 tbspOlive oilfor frying
  • 1 tbspButterfor frying
  • 1/2 tspSalt
  • 1/4 tspBlack pepper

Method

  1. 1

    Peel the potatoes and grate them using the large holes of a box grater into a clean tea towel or muslin cloth.

  2. 2

    Gather the corners of the cloth and twist tightly, squeezing out as much liquid as you possibly can over the sink.

  3. 3

    Transfer the squeezed potato to a clean bowl. Add the spring onions, flour, salt, and pepper. Mix gently to combine.

  4. 4

    Heat the olive oil and butter in a 20cm non-stick frying pan over a medium-high heat. The fat should be hot but not smoking.

  5. 5

    Add the potato mixture to the pan. Press it down with a spatula to form an even layer. Don't press too hard.

  6. 6

    Cook for 8-10 minutes on the first side, until deep golden brown and crisp. You should be able to see the edges lifting slightly.

  7. 7

    Carefully flip the rosti over using a large spatula. If you’re nervous, you can slide it onto a plate, then invert the pan over the plate and flip it back into the pan.

  8. 8

    Cook for a further 8-10 minutes on the second side until golden and crisp. Slide onto a chopping board, cut into wedges, and serve immediately.

Tips

  • ·If your potatoes are very starchy, rinse them after grating and squeeze again.
  • ·Use a non-stick pan for best results. Cast iron is not ideal here.
  • ·Don't overcrowd the pan if making a larger rosti, or cook in batches.
  • ·Add a pinch of cayenne pepper or some grated cheese to the potato mix for extra flavour.

Variations

  • Add 50g of finely grated cheddar cheese to the potato mixture before frying.
  • Stir in 1 tbsp of chopped fresh chives along with the spring onions.
  • Serve with a poached egg on top for a simple brunch.

Storage

Best eaten fresh. Leftovers can be cooled, covered, and kept in the fridge for up to 2 days. Reheat in a hot oven or a dry frying pan until crisp.

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