Doughs & batters
Croissant dough
Détrempe et beurrage · A yeast-leavened laminated dough built by enclosing a cold beurrage block within a fermented détrempe, then executing repeated letter folds to create alternating butter-dough layers. Upon baking, the steam from evaporating water within the butter layers lifts the dough into the characteristic honeycomb crumb and shattering crust of a croissant.
The formula
1000 flour : 700 butter : 560 liquid by weight
1000g strong bread flour (14–15% protein), 560g full-fat liquid (whole milk or 80% milk + 20% egg by weight), 40g butter for détrempe, 660g European-style 84% fat butter for beurrage, 60g caster sugar, 20g fine salt, 30g fresh yeast (or 10g instant). Yields ~12 large croissants or 18 standard. All ingredients cold (4–6 °C); beurrage is a 20×30 cm block at 13–15 °C.
Identity
- Cold butter block (beurrage) at 13–15 °C, firm but pliable, encased in room-temperature dough before lamination
- Three single folds (tour simple) with 30-minute rests, or equivalent two book folds; dough never tears during folding
- Fermented détrempe with genuine yeast leavening, not chemically leavened
- Overnight cold fermentation (12–18 h at 4 °C) between fold series for flavour development and controlled gluten relaxation
- Final proof at 24–27 °C, 75–80% RH until dough temperature reaches 19–20 °C and croissants spring back slowly when poked
Ingredients
| Base | strong bread flour (14–15% protein) | High protein creates the gluten network that traps steam from butter layers; too low protein produces a cakey, non-laminating crumb. |
| Liquid | whole milk | Full-fat milk (3.5%+ protein) for structure and Maillard colour; some recipes substitute up to 20% egg for richness. |
| Fat | European-style high-fat butter (84% fat minimum) | 84% fat butter has lower water content than standard 80% butter, producing more steam and better layer separation. Unsalted so the cook controls seasoning. |
| Binder | fresh baker's yeast | 30 g fresh (or 10 g instant) provides genuine fermentation gases; chemical leavening cannot replicate the flavour or crumb structure. |
| Seasoning | caster sugar | 60 g provides food for yeast, colour via Maillard, and sweetness that balances the butter. |
| Seasoning | fine salt | 20 g tightens gluten, strengthens dough, and is essential for flavour balance. |
Method
- 1Combine flour, sugar, salt, and yeast. Add cold milk and 40 g melted or softened butter. Mix to a smooth, non-sticky détrempe (2–3 min by hand, 1 min in stand mixer with dough hook).Even gluten development begins here. Cold liquid slows fermentation so dough is manageable for lamination.
- 2Wrap détrempe tightly in cling film. Refrigerate 30–60 min until 4–6 °C core temperature. Meanwhile, beat remaining 660 g cold butter between parchment into a 20×30 cm uniform block at 13–15 °C (pliable, not greasy).Chilling the détrempe keeps butter cold during lamination. Butter at 13–15 °C bends without cracking or smearing — the critical temperature window for clean layers.
- 3On a lightly floured surface, roll détrempe into a 40×35 cm rectangle. Place butter block in centre. Fold dough over butter completely, pinching seams tightly. Perform first tour simple (single fold): roll to 50×20 cm, fold right third over centre, then left third over centre. Fold in half like a book. Mark with knuckle indent.Enclosing the butter creates the first dough-butter-dough unit. Pinched seams prevent butter leakage. The knuckle mark tracks fold count during refrigeration.
- 4Wrap in cling film. Refrigerate 30 min minimum (up to 2 h). Repeat for two more tour simples, resting 30 min between each, always rolling away from the seam to maintain even thickness.Each tour simple doubles the number of layers (1→2→4→8 layers after three folds). Resting relaxes gluten so the dough rolls without springing back and prevents butter from warming.
- 5After final rest, roll dough to 4 mm thick. Cut into long triangles (base 9–10 cm, height 25–30 cm). Stretch slightly, then roll firmly from base to apex to shape. Place on lined baking tray, points tucked under.Uniform thickness ensures even lamination and baking. Stretching elongates the layered structure so layers run perpendicular to the curl, producing the open honeycomb.
- 6Proof at 24–27 °C, 75–80% RH for 2–3 h until croissants have grown 50–70%, feel airy, and spring back slowly when gently pressed (dough temp ~19–20 °C). Glaze with egg yolk beaten with a little milk or cream.Proper proof develops the open crumb and allows yeast to produce CO₂ that will be trapped as oven spring. The egg glaze creates the glossy, mahogany-coloured crust.
- 7Bake in a preheated oven at 190–200 °C (375–390 °F) for 15–18 min, rotating tray at 8 min. Croissants are done when deeply golden-brown all over and internal temperature reaches 90 °C.High initial heat liquefies butter rapidly, creating steam that lifts layers. Rotating ensures even browning. Temperature endpoint ensures the crumb is set and fully baked.
Techniques that matter
Lamination (beurrage method)
Alternating butter and dough layers through folding is the defining technique; without it the dough is merely enriched bread.
Controlled butter temperature management
Butter at 13–15 °C is the working window — cold enough to form distinct layers, warm enough to roll without shattering or punching through dough.
Gluten relaxation via cold fermentation
Overnight refrigeration between fold series allows protease enzymes to partially break gluten strands, reducing spring and making the dough pliable for thin, even rolling.
Final proof by dough temperature
Croissants are ready to bake when core temperature reaches 19–20 °C, regardless of clock time; temperature drives fermentation rate.
Variations & derivatives
Pain au chocolatFrance
Rectangles of dark chocolate (2 × 8 cm, ~30 g each) placed at the base of the rectangle and rolled in. No cream; same dough.
KipferlAustria
The ancestor of the croissant: piped or rolled crescent shapes, sometimes with ground almonds, less heavily laminated but same détrempe principle.
Pains aux raisinsFrance
Round Danish-style: croissant dough rolled thin, spread with crème pâtissière, dotted with rum-soaked raisins, rolled and sliced.
Croissant dough (Danish paste)United States / commercial
Higher sugar (10–12%), more eggs, and sometimes 15–20% butter in the détrempe itself, producing a richer, softer dough for laminated Danish.
KougelhopfAlsace
Not a laminated dough but a direct cousin: same yeast-enriched détrempe but with candied citrus, almonds, and raisins; moulded in a fluted tin.
Used in these dishes
Substitutions
- European 84% fat butter → Standard 80% butter — Acceptable but produces 5% less steam; layers will be slightly less distinct and crust slightly less shattering. Increase hydration of détrempe by 2–3% to compensate.changes result
- Instant dry yeast → Fresh baker's yeast (30 g fresh = 10 g instant) — Direct substitution by weight. Instant can be mixed into flour directly; fresh must be dissolved in the liquid first.
- Whole milk → Water (partial substitution) — Up to 30% water substitution is tolerated but milk's protein and lactose contribute to Maillard colour and tender crumb; full water produces a paler, slightly tougher result.changes result
Troubleshooting
Butter tears through dough during rolling
Butter is too cold (below 10 °C) and shatters rather than bending; or dough is too cold and inelastic, cracking under tension → Allow beurrage to warm to 13–15 °C on the bench briefly. If dough is too cold, let rest 5–10 min at room temperature before continuing. Never force-roll cold, stiff dough.
Butter leaks out during baking (pools of fat on tray)
Butter was too warm during lamination (above 18 °C) and was absorbed into dough rather than staying as a discrete layer; or seams were not sealed before rolling → Maintain dough and butter at 4–6 °C during rest periods. Ensure all seams are pinched shut before each fold. If butter is visibly soft or greasy during folding, refrigerate 30 min and resume.
Dense, leaden crumb with no visible layers
Under-proofing (yeast did not produce enough gas to separate layers) combined with insufficient lamination or butter that was too warm and absorbed rather than laminated → Ensure proper final proof: croissants should nearly double in volume and feel light. Confirm three full tour simples were executed with rests. Bake at 190–200 °C for proper steam generation.
Croissants shrink and tighten after shaping
Over-worked dough with excessive gluten tension; insufficient resting between folds; dough too warm during shaping → Respect the 30-minute cold rests after each fold. If dough springs back strongly, refrigerate 30 min and retry. Shape quickly with cold dough (4–6 °C).