Croissant Dough (Détrempe to Beurrage)

2 parts (e.g. 1 kg)

Détrempe (base yeast dough) — Typically: bread flour + milk + sugar (8–10%) + salt (2%) + yeast (2–2.5% fresh) + a small amount of butter (4–6%) and sometimes egg yolk; the small butter content keeps it extensible without tearing during lamination

1 part (e.g. 500 g)

Beurrage (butter block) — Must be a high-fat, low-moisture 'dry' or 'tourage' butter with ≥84% fat — standard supermarket butter (80% fat, ~16% water) creates excess steam and soggy layers; European-style butter or a dedicated beurrage de tourage is standard

~55–60% of flour weight

Milk (in détrempe) — Contributes sugars for Maillard browning and richens the dough without adding yolk's emulsifying fat

8–10% of flour weight

Sugar (in détrempe) — Feeds the yeast, promotes crust color, and adds subtle sweetness distinct from bread

Day 1 — Mix the détrempe: combine flour, milk, salt, sugar, yeast, and small amount of butter; mix until a smooth, developed dough forms (10–12 min); chill flat in the fridge overnight. Day 2 — Beat the cold butter into a flat, pliable 20 cm square (beurrage); it must be cold but malleable (around 14–16°C), not hard or it will shatter. Encase the beurrage in the rolled détrempe ('package' fold). Perform three double folds (tour double / book fold): roll to a long rectangle, fold in quarters, chill 30–60 min, repeat × 2. This produces 4³ = 64 layers (after resting; start count from a 2-layer package). Chill overnight. Day 3 — Roll to 4–5 mm, cut triangles, roll from base to tip, curve, proof at 26–28°C for 2–3 hours, brush with egg wash, bake at 185–195°C for 18–22 min.

• Both the beurrage and détrempe must be at the same pliability (14–16°C) when beginning lamination — if the butter is colder it will shatter through the dough; if warmer it will smear and merge with the layers.
• Work cold and work fast: return the dough to the refrigerator the moment it starts to feel soft or resists rolling. Overheated lamination produces a greasy, dense crumb.
• Do not skip resting between folds — the gluten in the détrempe needs to relax or it will spring back and tear.
• Steam in the oven for the first 5 minutes (inject steam or place a pan of boiling water) helps develop oven spring before the crust sets, producing taller, more open croissants.
• Proof croissants until they wobble visibly when the tray is shaken (the jiggle test) and appear visibly puffed. Under-proofed croissants have a dense crumb; over-proofed ones collapse during baking.
• Use tourage (dry) butter with at least 84% fat. In countries where this is hard to source, clarify the moisture from regular butter or use a high-quality European-style butter and compensate by working colder.

• Pain au chocolat (chocolatine)

  Same dough and lamination ratio; cut as rectangles rather than triangles, enclose a bâton of dark chocolate (64–70% cocoa), roll rather than curl

• Pain aux raisins

  Same dough rolled flat, spread with crème pâtissière, scattered with rum-soaked raisins, rolled into a log, sliced into rounds, proofed and baked

• High-butter (1.5:1) croissant

  Used by some artisan boulangeries for a richer, more pronounced honeycomb; requires more precise temperature control as the extra fat increases tear-through risk

• Danish pastry dough (wienerbrød)

  Similar lamination ratio but détrempe is richer in eggs and sugar; used for Danish pastries, bear claws, and kringle; butter block usually 25–30% of total weight

• Whole-wheat croissant

  Substitute 20–30% of bread flour with whole-wheat in the détrempe; increases water absorption ~5%, adds a nutty depth, slightly reduces layering definition

• Puff Pastry (Détrempe to Beurrage, 1:1)

  The same lamination principle without yeast; a higher butter ratio and different fold count produce even more pronounced layers but no yeast-driven rise

• Danish Pastry Dough

  Closely related enriched laminated dough with higher egg and sugar content; butter ratio typically 25–30% of total weight

1. 1.Advanced Bread and Pastry — Michel Suas (2008)
2. 2.Bouchon Bakery — Thomas Keller & Sebastien Rouxel (2012)
3. 3.The Professional Pastry Chef — Bo Friberg (4th ed., 2002)
4. 4.Bread Science — Emily Buehler (2006)

Confidence: high