Kouign-Amann: Mastering Brittany's Laminated Butter Cake
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Overview
This video demystifies the Kouign-Amann, Brittany's notoriously demanding laminated butter cake, known for its forty layers of dough and butter and a glass-like caramelized shell. Experts guide viewers through precise steps to achieve laminated perfection, emphasizing critical temperature control, sugar incorporation timing, and quick unmolding for success.
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Ingredients
- 500 grams bread flour
- 3 and 1/2 cups bread flour
- 10 grams fine sea salt
- 2 teaspoons fine sea salt
- 7 grams instant yeast
- 2 and 1/4 teaspoons instant yeast
- 320 milliliters lukewarm water
- 1 and 1/3 cups lukewarm water
- 15 grams melted butter
- 1 tablespoon melted butter
- 300 grams cold, high-fat European butter (minimum 82 percent butterfat)
- 10 and 1/2 ounces cold, high-fat European butter (minimum 82 percent butterfat)
- 250 grams white caster sugar
- 1 and 1/4 cups white caster sugar
- 50 grams sugar
- 1/4 cup sugar
- Softened butter (for greasing rings)
Instructions
- In a stand mixer, combine 500 grams, or 3 and 1/2 cups, of bread flour, 10 grams, or 2 teaspoons, of fine sea salt, and 7 grams, or 2 and 1/4 teaspoons, of instant yeast.
- Pour in 320 milliliters, or 1 and 1/3 cups, of lukewarm water at exactly 24 degrees Celsius, or 75 degrees Fahrenheit, plus 15 grams, or 1 tablespoon, of melted butter.
- Mix on low speed for 4 minutes until a rough, shaggy mass forms; do not over-knead.
- Chill the dough.
- Pound 300 grams, or 10 and 1/2 ounces, of cold, high-fat European butter (minimum 82 percent butterfat) into a 15-centimeter, or 6-inch, square block, ensuring it is pliable but cold (precisely 15 degrees Celsius, or 60 degrees Fahrenheit).
- Encase this butter block completely inside your chilled détrempe.
- Roll the dough out to 60 centimeters, or 24 inches, in length.
- Perform your first single fold, bringing the top third down and bottom third up like a business letter.
- Rotate 90 degrees.
- Roll out the dough again.
- Execute a second single fold.
- Sprinkle half of 250 grams, or 1 and 1/4 cups, of white caster sugar over your workbench and the dough.
- Roll it out to 60 centimeters, or 24 inches, pressing the sugar directly into the layers.
- Fold it once more into a third single turn.
- Sprinkle the remaining sugar.
- Roll it again.
- Complete the fourth and final single turn.
- Chill this block for a strict 20 minutes.
- Generously grease twelve 8-centimeter, or 3-inch, steel pastry rings with softened butter and coat the insides with 50 grams, or 1/4 cup, of sugar.
- Roll your rested, sugared dough to a thickness of 6 millimeters, or 1/4 inch.
- Using a sharp knife, trim the edges and cut the sheet into twelve 10-centimeter, or 4-inch, squares.
- Take each square, gently stretch the four corners, and fold them into the center to create a four-leaf clover shape.
- Press firmly in the middle so they do not unfold.
- Drop each into a prepared ring on a parchment-lined tray.
- Preheat your oven to 200 degrees Celsius, or 400 degrees Fahrenheit.
- Place the tray in the center rack and immediately drop the temperature to 190 degrees Celsius, or 375 degrees Fahrenheit.
- Bake for exactly 25 minutes.
- At the 15-minute mark, rotate the pan 180 degrees for even browning.
- Remove from the oven.
- Unmold them within 60 seconds.
Frequently asked questions
- What is Kouign-Amann?
- The Kouign-Amann, literally 'butter cake' in Breton, is a notoriously demanding pastry created in 1860 in Douarnenez, Brittany. It features forty layers of dough and salted butter, with enough sugar to form a glass-like caramelized shell.
- When should sugar be added to Kouign-Amann dough?
- Sugar should only be added during the final two folds of the lamination process. Adding it earlier can cause the yeast to consume it and make the dough weep, ruining the lamination.
- What are the key temperatures for successful Kouign-Amann?
- The dough and butter must remain cold, between 4 and 15 degrees Celsius, to maintain layer integrity during lamination. Lukewarm water for the détrempe should be exactly 24 degrees Celsius (75 degrees Fahrenheit).
- How do I prevent my Kouign-Amann from leaking butter or being raw inside?
- Leaking butter indicates the butter block was too warm during lamination. Doughy interiors mean the oven was too hot, caramelizing the exterior before the crumb cooked through.
- How quickly must Kouign-Amann be unmolded after baking?
- The pastries must be unmolded within 60 seconds of being removed from the oven. Waiting even 3 minutes will cause the caramel to harden to glass, permanently gluing the pastries to the steel rings.
Transcript
Anna Park: Forty layers of dough. Forty layers of salted butter. And enough sugar to form a glass-like caramelized shell that shatters when you bite into it. Created in eighteen sixty in the coastal town of Douarnenez, Brittany, the Kouign-Amann—literally 'butter cake' in the Breton language—is the most notoriously demanding pastry in the world. Get it wrong, and you have a dense, leaking puddle of grease. Get it right, and you achieve laminated perfection. Joining us to demystify the mathematics of this masterpiece are Loïc Kervella, a third-generation baker from Finistère, and Dr. Camille Laurent, a laminated-dough specialist and culinary scientist.
Anna Park: The foundation is the détrempe, our base dough. In a stand mixer, combine 500 grams, or 3 and 1/2 cups, of bread flour, 10 grams, or 2 teaspoons, of fine sea salt, and 7 grams, or 2 and 1/4 teaspoons, of instant yeast. Pour in 320 milliliters, or 1 and 1/3 cups, of lukewarm water at exactly 24 degrees Celsius, or 75 degrees Fahrenheit, plus 15 grams, or 1 tablespoon, of melted butter. Mix on low speed for 4 minutes until a rough, shaggy mass forms. Do not over-knead; we need extensible dough, not tight rubber.
Anna Park: While the dough chills, pound 300 grams, or 10 and 1/2 ounces, of cold, high-fat European butter—minimum 82 percent butterfat—into a 15-centimeter, or 6-inch, square block. It must be pliable but cold, precisely 15 degrees Celsius, or 60 degrees Fahrenheit. Encase this butter block completely inside your chilled détrempe. Roll the dough out to 60 centimeters, or 24 inches, in length. Perform your first single fold, bringing the top third down and bottom third up like a business letter. Rotate 90 degrees, roll out again, and execute a second single fold.
Anna Park: Here is where Kouign-Amann diverges from the croissant. We add sugar only during the final folds; otherwise, the yeast consumes it and the dough weeps. Take 250 grams, or 1 and 1/4 cups, of white caster sugar. Sprinkle half over your workbench and the dough. Roll it out to 60 centimeters, or 24 inches, pressing the sugar directly into the layers. Fold it once more into a third single turn. Sprinkle the remaining sugar, roll it again, and complete the fourth and final single turn. You now have eighty-one layers of dough encasing butter and sugar. Chill this block for a strict 20 minutes—no longer, or the sugar will draw out the moisture.
Anna Park: Prepare your baking rings. Generously grease twelve 8-centimeter, or 3-inch, steel pastry rings with softened butter and coat the insides with 50 grams, or 1/4 cup, of sugar. Roll your rested, sugared dough to a thickness of 6 millimeters, or 1/4 inch. Using a sharp knife, trim the edges and cut the sheet into twelve 10-centimeter, or 4-inch, squares. Take each square, gently stretch the four corners, and fold them into the center to create a four-leaf clover shape. Press firmly in the middle so they do not unfold. Drop each into a prepared ring on a parchment-lined tray.
Anna Park: Baking is where the magic of caramelization happens. Preheat your oven to 200 degrees Celsius, or 400 degrees Fahrenheit. Place the tray in the center rack and immediately drop the temperature to 190 degrees Celsius, or 375 degrees Fahrenheit. Bake for exactly 25 minutes. At the 15-minute mark, rotate the pan 180 degrees for even browning. The sugar will melt, mix with the escaping butter, and fry the dough in its own caramel ring. Remove from the oven. You must unmold them within 60 seconds. If you wait even 3 minutes, the caramel will harden to glass, and the pastries will be permanently glued to the steel rings.
Anna Park: If your pastry leaks massive pools of butter during baking, your butter block was too warm during lamination, melting into the dough rather than forming distinct sheets. If the inside is doughy and raw, your oven was too hot, caramelizing the exterior sugar before the crumb could cook. The perfect Kouign-Amann relies on the phase transition of water to steam lifting the dough, while the sugar reaches 160 degrees Celsius, or 320 degrees Fahrenheit, to trigger the Maillard reaction. The result should be a shatteringly crisp, amber-dark exterior that gives way to a soft, buttery, honeycomb-like interior structure.
Anna Park: That honeycomb structure is the ultimate reward for mastering this Breton classic. Three takeaways to guarantee your success: First, control your temperatures rigorously—your butter and dough must remain cold, between 4 and 15 degrees Celsius, to maintain layer integrity. Second, wait until the final two folds to incorporate your sugar, preventing the dough from weeping and ruining the lamination. And third, unmold the baked pastries within 60 seconds of leaving the oven, before the caramel sets into cement. Thank you to Loïc Kervella and Dr. Camille Laurent for guiding us through the world's most demanding pastry.
Note: Informational only. Figures are a guide — verify before relying on them.