KO EN Swiss Side dish⏱ 35 minEdit history

Rösti

Name: Rösti
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Yield: 2 servings
Cuisine: Swiss
Ingredients: 600 g Potatoes; 30 g Butter; 1 tsp Salt; Black pepper; Bacon & onion; Cheese (Gruyère)

A Swiss potato cake of coarsely grated potato pressed into a pan and fried golden and crisp. Golden and crunchy outside, tender and comforting within. Once a Swiss farmhouse breakfast, it becomes a full meal with eggs, bacon, or sausage.

Ingredients

2servings

Steps

Par-boil the potatoes in their skins for about 8 minutes, cool completely, then peel. (You can also use raw potatoes.)
⏲ 15 min
Coarsely grate the cooled potatoes and season with salt and pepper. (Mix in bacon, onion, or cheese now if using.)
⏲ 4 min
Melt butter in a pan, spread the grated potato out, and press into a disc with a spatula.
⏲ 2 min
Fry over medium-low heat for 7–10 minutes until the base is golden and crisp, shaking so it doesn't stick.
⏲ 9 min
Flip by inverting onto a plate (or carefully turn) and brown the other side. Cut into wedges to serve.
⏲ 8 min

Tips & Variations

Variations

Rösti with egg: Top with a runny fried egg.
Cheese rösti: Fold in Gruyère for nuttiness.
Bacon & onion rösti: Mix in chopped bacon and onion.
Raw-potato version: Skip the boiling; grate raw and squeeze out the water.

Tips

Par-boil and cool the potatoes before grating so they hold together and stay chewy.
With raw potato, squeeze out the water well for crispness.
Fry medium-low and slow so the inside cooks and the outside crisps.
Invert onto a plate to flip without breaking the shape.
Par-boiled and raw are not easy and hard, they are two different mechanisms. Boiling for eight minutes gelatinises the outside of each potato; cooling it completely then lets that starch retrograde — recrystallise — which is what makes the shreds firm enough to grate cleanly and to set into a mass rather than a purée. Arancini is built on the same phenomenon in rice, and daifuku explains the molecule behind it. The raw version works a completely different way: nothing has gelatinised, so what glues the shreds is free starch on their cut surfaces, and the water has to be wrung out or it steams the cake from inside. Which is why the two versions need opposite handling — cool the par-boiled one and never squeeze it, squeeze the raw one and never let it sit.
With raw potato, grate it at the last moment. Gamja-jeon and cepelinai both say so: cut potato greys within minutes as its phenols meet air. The par-boiled version has no such hurry, because the heat has already destroyed the enzyme that does it — a small practical advantage nobody mentions.
Medium-low is a butter constraint. Butter's milk solids start to burn around 150°C (dairy and heat), and this cake needs seven to ten minutes on a side. Those two numbers only fit together at a gentle heat; push it up for speed and the butter goes bitter long before the crust is built. If you want a harder, faster sear, that is what oil or clarified butter is for.
There is no binder in it at all — no egg, no flour, nothing but potato, salt and pressure, which is why it is inverted onto a plate rather than turned with a spatula. Gratin dauphinois names it as the same family: a shape built from nothing but potato.