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The guide · Breton cake

Kouign-amann: what it really is, and how to eat it

Warm or cold, how many calories, where it comes from, what it costs, and the myths that keep circulating, PGI included. A guide from a Breton restaurant in Paris that serves it every day it is open.

  • Eaten warm
  • 502 kcal / 100 g
  • No PGI, no PDO

Kouign-amann is a Breton cake made from bread dough, salted butter and sugar, folded in layers and baked until the sugar caramelises into a crisp crust, and it is at its best eaten warm, never straight from the fridge. Ty Louis, a Breton restaurant at 240 rue du Faubourg Saint-Antoine in the 12th arrondissement of Paris, between Bastille and Nation, serves it warm as a dessert with a scoop of Jampi ice cream, for 12,80 €.

From Finistère, around 1860Bread dough, salted butter, sugarBest eaten warm

Kouign-amann is the Breton cake that is easiest to describe and hardest to get right: bread dough, salted butter, sugar. Nothing else. In the oven the sugar caramelises and the butter soaks through the layers, which gives it the glossy crust and the flaky centre that have made it famous well beyond Brittany.

This page answers the questions people ask about the cake itself: where it comes from, how to eat it, how many calories it carries, what it costs, and what is wrong in much of what you read about it. If you are looking for where to eat a good one in Paris, our pick of addresses is here.

Updated: October 2026

Definition

What is kouign-amann?

Kouign-amann is a Breton cake made from leavened bread dough, salted butter and sugar, worked into layers by repeated folding, then baked until it caramelises. In Breton, kouign means cake and amann means butter: it is, literally, butter cake. Say it roughly “kween-ah-mann”.

The recipe is a ratio more than a list: about 40% bread dough, 30% salted butter and 30% sugar. No egg, no milk, no baking powder. Everything depends on the lamination (folding the butter in, as for puff pastry) and on the final caramelisation, in a fairly gentle oven, for a long time.

It is a baker’s cake, not a pastry chef’s. The distinction matters: it explains why the best versions in Paris are often found in bakeries rather than pastry shops, and why it has nothing to do with a croissant, even if the two look alike from a distance.

The question we hear most

Should kouign-amann be eaten warm or cold?

Warm. That is when the caramelised crust stays supple and the salted butter comes through. Cold, the butter sets and the cake feels heavy. Piping hot, the caramel has not set yet.

Straight from the oven

Too hot

The caramel is still liquid and scalding, and the layers have not set. Give it about ten minutes to rest.

Warm

The right moment

The caramel is supple, the salted butter comes through and the crust still cracks. This is when the cake gives everything it has.

Room temperature

Fine

Still very good on the day. Four to five minutes in the oven at 150 °C (300 °F) brings the crunch back.

Out of the fridge

Avoid

Cold sets the butter and softens the crust. The cake turns heavy and dense. Keep it out of the fridge.

It is also why you rarely see it in restaurants: serving it warm on the plate means bringing it back to temperature at dessert time, which very few kitchens are willing to do.

Origin

The history of kouign-amann, and a local rivalry

Two towns in Finistère, at the western tip of Brittany, claim to have invented it. We give both versions: the question has never been settled, and pretending otherwise would be dishonest.

  1. Around 1860

    Douarnenez and the baker Scordia

    The most widespread version credits Yves-René Scordia (1828 to 1878), a baker in Douarnenez, a fishing port in southern Finistère. On a busy day, out of cakes, he is said to have improvised with what he had to hand: bread dough, butter and sugar, worked together in successive folds. Kouign-amann, so the story goes, was born by accident.

  2. The rival version

    Scaër claims it too

    About forty kilometres away, the town of Scaër tells a different story, that of the baker Henri Postic, and points to an earlier kouign recipe in its local archives. Postic’s daughter is said to have married a man from Douarnenez and taken the recipe with her. The quarrel has never been settled and probably never will be: at the time, nobody thought of protecting anything.

  3. 1960s

    Douarnenez becomes the birthplace

    The town runs competitions, promotes the cake and ends up attaching its name to it in the public mind. The link everyone makes today, Douarnenez equals kouign-amann, dates from this period.

  4. November 1999

    Seventeen bakers join forces

    With no official designation available, seventeen bakers and pastry bakers from Douarnenez set up an association to defend the real kouign-amann. On 15 December 1999 it registers the trademark “Le Véritable Kouign Amann de Douarnenez” with INPI, the French trademark office. To this day, that is the only protection that exists.

  5. 2011

    The New York Times weighs in

    A New York Times article describes it as the fattiest pastry in Europe. The line goes round the world and launches the cake’s international career: San Francisco, New York, Tokyo, London. Paris bakeries follow over the following decade.

True or false

Five myths about kouign-amann

Including one we repeated on this very site until August 2026, and have since corrected.

  • false

    “Douarnenez kouign-amann is protected by a PGI.”

    There is no PGI and no PDO for kouign-amann: the cake does not appear in the register of INAO, the French body that manages origin labels. The only real protection is a private trademark, “Le Véritable Kouign Amann de Douarnenez”, registered in December 1999 by an association of seventeen local bakers. Outside that circle, anyone can write “kouign-amann” on a label, in Brest or in Tokyo. That is exactly why quality varies so much.

  • false

    “It is a laminated pastry, like a croissant.”

    A croissant starts from a leavened, laminated Viennese dough enriched with milk and sometimes egg. Kouign-amann starts from plain bread dough: flour, water, baker’s yeast, salt. No egg, no milk, no baking powder. The butter and sugar are folded in afterwards. It is a baker’s cake, not a pastry chef’s.

  • false

    “You should keep it in the fridge.”

    Cold sets the butter and turns the caramelised crust soft. Kouign-amann keeps at room temperature, in its paper or a clean cloth, and should be eaten within 24 to 48 hours. After that, it dries out.

  • true

    “It should be eaten warm.”

    The one rule everyone agrees on, in Douarnenez and elsewhere. Warm, the caramel stays supple and the salted butter comes through. Cold, everything closes up. It is also why you find it far less often in restaurants than in bakeries: it has to be brought back to temperature at the moment it is served.

  • false

    “Kouign-amann and gâteau breton are the same thing.”

    Two different cakes. Gâteau breton is a thick shortbread-style cake, very rich in butter and egg yolks, dense and dry, that keeps for days. Kouign-amann is layered, moist in the middle, caramelised on top, and does not keep.

Telling them apart

Kouign-amann, croissant, far, gâteau breton

Four cakes that often get lumped together, plus a brioche for comparison.

CakeMade from
Kouign-amannLeavened bread dough, salted butter, sugar
CroissantLaminated Viennese yeast dough, unsalted butter
Far bretonEggs, milk, flour, sugar, prunes
Gâteau bretonShortbread dough, salted butter, egg yolks
BriocheYeast dough enriched with butter and eggs

Far breton, which keeps for several days, can also be ordered whole: we make it to order, 14 slices for 60,20 €, to collect at the restaurant. Order ahead on 06 73 08 54 13, or have a slice for dessert from our menu.

The two numbers

What it costs, what it weighs

Neighbourhood bakery, Paris

2 € to 3 €

The everyday format, sold by the piece like a croissant. The best value for money when the bakery takes it seriously.

Well-known pastry shop

3,50 € to 4,50 €

AOP butter, careful lamination, often a more generous size. You pay for the execution, not a brand.

As a restaurant dessert

8 € to 13 €

Much rarer, because it has to be served warm on the plate. The price covers reheating, plating and whatever comes with it.

At Ty Louis, Paris 12

12,80 €

Served warm as an end-of-meal dessert, with a scoop of artisan Jampi ice cream, flavour of your choice.

Observed: August 2026. The first two lines are a Paris ballpark, not a price list.

At Ty Louis

Why we serve it warm, at the table

Ty Louis is a Breton restaurant in the 12th arrondissement, between Bastille and Nation, not a bakery. Kouign-amann is an end-of-meal dessert here, served warm with a scoop of artisan ice cream from the Breton ice cream maker Jampi, flavour of your choice. The contrast between warm cake and cold ice cream is the whole point.

It is the opposite of the pastry eaten standing on the pavement. Not better, not worse: something else. To know which Paris addresses are worth the trip, bakeries included, we keep an up-to-date selection.

Good to know

Kouign-amann, question by question

Should kouign-amann be eaten warm or cold?

Warm. That is the temperature at which the caramelised crust stays supple and the salted butter really comes through. Cold, the butter sets and the cake feels heavy and dense. Straight from the oven, it is scalding and the caramel is still liquid: let it rest for about ten minutes. If you bought it in the morning for the evening, give it 4 to 5 minutes in the oven at 150 °C (300 °F).

How many calories are in a kouign-amann?

About 502 kcal per 100 g according to the Ciqual table of ANSES, the French food safety agency, with roughly 29 g of fat and 55 g of carbohydrates. A bakery portion usually weighs 70 to 100 g (2.5 to 3.5 oz), so around 350 to 500 kcal. It is a treat, not a snack: a small piece is enough.

Does kouign-amann have a PGI or PDO?

No. Despite what you will often read, kouign-amann has neither a PGI nor a PDO, and it does not appear in the register of INAO, the French body that manages origin labels. The only protection is a private trademark, “Le Véritable Kouign Amann de Douarnenez”, registered with INPI in December 1999 by an association of seventeen bakers from the town. The association has stated a PGI as its goal, without success so far. Everywhere else the name is free to use, which is why quality varies so much from one place to the next.

How do you pronounce kouign-amann?

Roughly “kween-ah-mann”. The “gn” is the soft French sound you hear in “lasagne”, and the final “ann” is said clearly. In Breton, kouign means cake and amann means butter: literally, butter cake.

What is the difference between kouign-amann and a croissant?

The starting dough. A croissant begins with a laminated Viennese yeast dough enriched with milk. Kouign-amann begins with plain bread dough: flour, water, baker’s yeast, salt. Sugar and salted butter are folded in layer by layer and caramelise in the oven, which gives it the glossy crust a croissant does not have.

What is the traditional kouign-amann recipe?

A ratio rather than a list: roughly 40% bread dough, 30% salted butter and 30% sugar. The dough is rolled out, covered with butter and sugar, then folded several times as for puff pastry, before a long bake at around 160 °C (320 °F). There is no egg, no milk and no baking powder. That simplicity is what makes it hard: nothing hides mediocre butter or a botched lamination.

How long does kouign-amann keep?

24 to 48 hours at room temperature, in its original paper or a clean cloth. Never in the fridge: cold hardens the butter and destroys the crunch. After two days it dries out and loses most of its appeal.

Can you reheat kouign-amann?

Yes, and it is a good idea once it has cooled: 4 to 5 minutes in the oven at 150 °C (300 °F) brings back the crunch. Avoid the microwave, which softens the dough and makes it rubbery.

How much does a kouign-amann cost in Paris?

In Paris, expect 2 € to 3 € a piece in a neighbourhood bakery and 3,50 € to 4,50 € at a well-known pastry shop (prices observed in August 2026). As a restaurant dessert, where it is much rarer because it has to be reheated, it runs from 8 € to 13 € depending on what comes with it. At Ty Louis it is 12,80 €, served warm with a scoop of Jampi ice cream.

Does kouign-amann contain eggs or gluten?

There is no egg in the traditional recipe, only bread dough, salted butter and sugar. It does contain gluten and lactose, since it is made from wheat flour and butter. There is no traditional gluten-free version.

Where does kouign-amann come from?

Brittany, in the Finistère department, around 1860. Douarnenez claims it through its baker Yves-René Scordia, and that is the most widespread version. Scaër tells another story, that of the baker Henri Postic, and traces the recipe even further back in its archives. The question has never been settled.

Reservations

A Breton table in Paris 12

Tuesday to Saturday, lunch and dinner, non-stop service.
240 rue du Faubourg Saint-Antoine, between Bastille and Nation.