Potato Gnocchi with Sage Butter
Gnocchi di patate al burro e salvia
Baked potatoes riced while hot and bound with as little flour as they will take, which is the difference between light gnocchi and bullets.
- Prep
- 40 min
- Cook
- 1 hr 15 min
- Resting
- 10 min
- Total
- 2 hr 5 min
- Serves
- 4
- Revisions
- 5
Allergens
- Cereals containing gluten
- Eggs
- Milk
Named from the ingredients as written, including those carried in from sub-recipes. This is not a guarantee — check the labels on what you actually buy, and note that a product’s recipe can change.
Ingredients
Serves
Method
Heat the oven to 200C/400F.
Prick each potato several times with a fork and bake them directly on the oven rack for 60-70 minutes, until a skewer slides into the centre with no resistance.
Bake rather than boil them. A boiled potato takes water in through every cut surface, and that water has to be balanced later with more flour, which is exactly what makes gnocchi heavy.
Cut the potatoes in half the moment they come out and let the steam pour off for 5 minutes.
Hold each half in a tea towel and scoop the flesh into a potato ricer, then rice it onto a clean worktop.
Do this while they are still too hot to hold comfortably. Hot potato gives its steam up; potato left to cool in its skin holds that water and turns sticky as soon as flour touches it.
Spread the riced potato out in a loose, shallow layer and leave it for 10 minutes, until it has cooled to warm and looks dry and fluffy.
Scatter the 6g of fine salt over the potato and drop the egg yolk on top.
Sift 150g of the flour over the whole lot.
Bring it together with a bench scraper, chopping through and folding over, until it just holds as a soft dough — ten or twelve movements, no more.
Do not knead it. There is no advantage in developing the gluten here and every disadvantage: a worked dough gives chewy, rubbery gnocchi, and once it has been worked there is no undoing it.
Add flour from the remaining 50g only until the dough stops sticking to your palm, and stop while it still feels barely holdable. Every extra spoonful buys an easier dough and a heavier dumpling.
Bring the 3 litres of water to the boil in a large pan and stir in the 15g of fine salt.
Roll a walnut of the dough, drop it into the boiling water and taste it once it floats.
Read that test dumpling honestly. If it fell apart in the water, work in a little more flour; if it is dense and gummy, there is already too much in and the rest of the batch will be no better.
Divide the dough into six pieces.
Roll each piece into a rope about 2cm thick on a lightly floured worktop, using a light hand and no downward pressure.
Cut each rope into 2cm pillows.
Roll each pillow down the back of a fork under your thumb if you want ridges, letting it drop onto a floured tray.
Melt the butter in a wide frying pan over medium heat.
Add the sage leaves and cook for 3-4 minutes, until the butter foams, the milk solids turn amber and the leaves go crisp and translucent.
Pull the pan off the heat as soon as it smells of toasted nuts. Browned butter goes from nutty to burnt in well under a minute, and burnt butter is bitter and cannot be diluted out.
Boil the gnocchi in two batches, no more than fit the surface of the pan in one layer.
Lift each one out with a slotted spoon about 30 seconds after it bobs up, which will be 90 seconds to 2 minutes from going in.
Do not leave them in once they float. They are cooked at that point, and every extra half minute waterlogs them until they break apart on the spoon.
Add a ladleful of the gnocchi water to the butter pan and swirl it until the sauce turns glossy and slightly thickened.
Slide the drained gnocchi into the pan and turn them over gently for 30 seconds, using the pan rather than a spoon so nothing is crushed.
Serve into warm bowls with the parmesan and the ground peppercorns over the top.
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What to expect
- Taste
Mild and comforting — plain potato and a little egg, with almost nothing else to distract from that simplicity in the dough itself. The sage butter carries the real flavour: nutty browned milk solids from the butter, and sage's resinous, slightly peppery, faintly medicinal edge, crisped rather than raw, with parmesan's salty, savoury depth tying it together.
- Aroma
Warm, plain potato as the gnocchi cook, and then the distinctive nutty, faintly caramel smell of browning butter, with sage's sharp, resinous aroma rising as the leaves crisp in the pan.
- Texture
The whole point of good gnocchi is lightness — a soft, slightly springy pillow that gives easily under a fork rather than a dense, chewy dumpling. The ridges, where used, hold small pockets of the butter sauce. Crisp sage leaves against the soft gnocchi give the only textural contrast in the dish.
- Sound
A quiet bubble as the gnocchi poach, and the specific sizzle and crackle of sage leaves crisping in hot browning butter — a much sharper, more active sound than the gentle simmer of the water.
- How the flavour moves
The nutty brown butter and crisp sage arrive first, sharp and aromatic, giving way to the soft, plain potato flavour of the gnocchi itself, with parmesan's salt rounding out the finish.
- Serve it
Served immediately and hot; gnocchi lose their appeal quickly as they cool and firm up.
- Goes with
Very little else is needed — this is a dish built to showcase the gnocchi and the butter, and a simple green salad alongside is about as far as it should go.
Cook's notes
- Difficulty
Moderate. The dough itself is simple, but judging exactly how much flour it needs — and stopping before it needs any more than that — is a genuine skill that takes a batch or two to learn by feel.
- Cost
Cheap — potatoes, a little flour and egg yolk, and butter and sage for the finish.
- Equipment
A potato ricer (a real requirement, not a nicety), a bench scraper, a fork or gnocchi board for the ridges, and a wide frying pan for the sage butter.
- When to make it
Any time, though it suits an evening when there's time to bake the potatoes properly rather than rushing the process.
- Best season
Potatoes are available year-round.
- You know it is done when
A test dumpling that holds together cleanly in the water without falling apart, and floats to the surface once cooked.
- And it feels like
Light and pillowy rather than dense; a dumpling that feels heavy and gummy in the test has too much flour in it already, and the rest of the batch will be no better.
- Food safety
Nothing beyond ordinary hygiene — this is a dish of potato, flour and egg, all cooked through.
- Where it goes wrong
- Boiling rather than baking the potatoes, which takes on excess water and demands far more flour to compensate.
- Kneading the dough like a bread dough, which develops gluten and turns the gnocchi chewy and rubbery.
- Adding flour by a fixed measurement rather than by feel, when potato water content genuinely varies between batches.
- Leaving cooked gnocchi in the boiling water after they float, which waterlogs and breaks them apart.
- If it does go wrong
Dense, heavy gnocchi: too much flour was worked in — test earlier next time and stop sooner. Gnocchi falling apart in the water: not enough flour, or the potato was too wet from having been boiled rather than baked. Rubbery texture: the dough was kneaded or over-worked.
- Making it ahead
Shape ahead and freeze on a tray, then cook straight from frozen — this is the most reliable way to make gnocchi in advance without compromising texture.
- Keeping it
Uncooked gnocchi keep a day refrigerated on a floured tray, or freeze well; cooked gnocchi are best eaten immediately rather than stored.
- Reheating
Not really applicable to cooked gnocchi, which lose their texture on reheating; freeze and cook fresh from frozen instead.
- Freezing
Uncooked, shaped gnocchi freeze very well on a floured tray until solid, then bagged — cook from frozen directly into boiling water, allowing a little extra time.
- Leftovers
Best not kept as cooked leftovers; if there is excess raw dough, shape and freeze it rather than cooking more than will be eaten immediately.
- Scaling it
Scales up by weight easily, though the ricing and shaping stages take proportionally longer with a bigger batch.
- Substitutions
Any floury baking potato variety can substitute for Maris Piper or King Edward; a waxy potato is the wrong choice here and will need considerably more flour to form a workable dough, at the cost of texture.
- Dietary swaps
Contains gluten (flour), egg and milk (parmesan and the sage butter). A gluten-free flour blend can substitute with some trial and error on quantity, since gluten-free flours absorb moisture differently. The egg yolk could be omitted for a slightly less rich, marginally more fragile dough.
- Shopping for it
A genuinely floury baking variety — Maris Piper or King Edward, or their local equivalent — is worth insisting on; a waxy potato will fight the whole method.
- Keeping the cost down
Potatoes and flour are both inexpensive; the only real cost is a modest amount of butter, sage and parmesan for the finish.
- Sustainability
A low-cost, largely plant-based main course with only a modest amount of dairy in the finish.
- Nutrition
A carbohydrate-forward main course, moderated by butter and cheese in the finish rather than a heavy sauce.
- Worth it?
One of the most genuinely rewarding technique lessons in the whole collection — get the potato dry and the flour minimal, and the difference between homemade and shop-bought gnocchi becomes obvious in the first bite.
Where it comes from
- Origin
Northern Italy, following the potato's slow adoption as a widely grown crop through the 18th and 19th centuries.
- Also called
Gnocchi di patate al burro e salvia.
- Said out loud
NYOK-kee dee pa-TA-teh al BOO-roh eh SAL-vee-ah.
- What the name means
Gnocchi likely derives from nocchio, a knot in wood, or from nocca, a knuckle — both describing the small, knotty, lump-like shape of the dumpling; patate simply means potatoes.
- History
Gnocchi predate the potato in Italian cooking by a considerable margin, originally made from breadcrumbs, semolina or flour alone; potato versions only became possible once the crop was established widely enough in northern Italy through the 18th and 19th centuries to become a common household ingredient.
- Why it matters
Everyday food across northern Italy, traditionally eaten as a first course rather than a main. In Rome, and through Italian migration in Argentina and Uruguay, ñoquis are traditionally eaten on the 29th of the month — a folk custom said to have originated as a way of stretching a household's money in the days before payday, using cheap, filling ingredients.
- When it is eaten
An everyday dish in its home regions, with the specific 29th-of-the-month tradition giving it a recurring, almost calendrical role in Rome and parts of South America.
- The traditional way
Ricing cooked potato while hot, binding it with the least possible flour, shaping by hand or with a gnocchi board, and cooking briefly in boiling water until the pieces float.
- How it changed
The specific technique of baking rather than boiling the potatoes to control water content is a refinement rather than a break from tradition — the underlying method of ricing hot potato and adding minimal flour is long-standing, with baking simply being the more reliable way of achieving a dry starting point.
- Regional variations
Gnocchi alla romana uses semolina rather than potato and is baked rather than boiled; gnocchi verdi incorporate spinach or other greens into the dough; countless regional sauces are paired with the same basic dumpling.
- How this version differs
This recipe insists on baking rather than boiling the potatoes specifically to minimise the flour needed, and finishes with a classic sage butter rather than a heavier sauce.
- Sources and credit
No individual can be credited with inventing potato gnocchi; it is a regional dish that developed as the potato itself spread through Italian agriculture.
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