Of all the pastries in the baker's repertoire, the croissant is the one that most dramatically rewards patience and precision. The process takes three days: day one for the dough, day two for lamination, day three for proofing and baking. Each step requires attention, but the actual active time is manageable — the dough rests more than it works. When you slice into a croissant you've made from scratch, you'll understand why professionals charge $4-6 per piece.
Day One: The Dough
The croissant dough is simple: flour, water, milk, sugar, salt, and a small amount of yeast. The inclusion of milk (rather than just water) gives the dough a richer flavor and softer crumb. The sugar is about 7-10% of the flour weight — enough to feed the yeast and help with browning, but not so much that it interferes with gluten development. The yeast is minimal — about 1.5% — because most of the leavening in a croissant comes from the steam in the butter layers, not from yeast.
Mix the dough until it comes together — don't over-knead. You want a smooth, pliable dough but not extensive gluten development (the lamination will develop the structure). Wrap and refrigerate overnight. The cold rest allows the gluten to relax and the flavors to develop.
Day Two: The Butter Block and First Lamination
Make the butter block: European butter with 84% fat, beaten between sheets of parchment into a 20cm square, about 1.5cm thick. The butter must be the same temperature as the dough when you laminate — both should feel cool and firm, like a just-cold stick of butter. If the butter crumbles when you try to bend it, it's too cold. If it leaves a grease mark on the paper, it's too warm.
Roll the dough into a rectangle slightly larger than the butter block. Place the butter in the center, fold the sides over to enclose it, and perform a letter fold (folding in thirds like a business letter). This is one turn. Refrigerate for 30 minutes. Repeat for a total of 2 turns on day two. Wrap and refrigerate overnight.
Day Three: Final Lamination and Proofing
On day three, perform the remaining turns: 1-2 more turns (for a total of 4-6 depending on the recipe), refrigerating 30 minutes between each. After the final turn, roll the dough to 4-5mm thickness and cut into triangles. The base of each triangle should be about 7-8cm wide, and the triangle should be about 25-30cm long.
To shape: make a small nick at the base of each triangle, stretch the dough gently, and roll from the base toward the point. The nick allows the rolled croissant to sit flat on the baking sheet. Place on a lined baking sheet, slightly curved (the ends should curve inward toward each other).
Proof at room temperature (20-22°C) for 2-3 hours, or in a proofer at 26°C for 1.5-2 hours. The croissants are proofed when they jiggle slightly when the baking sheet is shaken, have visibly increased in size (about 50% larger), and you can see the layers when you look at the cut end.
Baking
Preheat the oven to 200°C (fan 180°C). Brush the proofed croissants with an egg wash (one egg beaten with a tablespoon of milk) — this gives the crust its deep mahogany color. Bake for 15-18 minutes until deep golden brown, rotating the tray halfway through for even browning. Let cool on a wire rack for at least 15 minutes before eating.