Croissants

Why This Croissants Works

During the first rise, the yeast wakes up in the warm milk and starts making tiny air pockets inside the dough. The sugar feeds the yeast, so the dough slowly puffs and becomes stretchy instead of stiff. By the time the dough is ready to roll, it can bend and fold without tearing.

When the cold butter goes in as thin slices, it stays in flat sheets between layers of dough. Each time the dough is folded and rolled, those sheets spread out and stack on top of each other. After chilling, the butter firms back up, so it doesn’t melt into the dough too early.

In the hot oven, the butter finally melts and gives off steam. That steam pushes the dough layers apart, so the croissants rise and separate into flakes. At the same time, the egg wash on the outside dries and browns, so the surface turns shiny and golden while the inside stays soft and light.

Mistakes To Avoid

Using milk that is too hot for the yeast can kill it, so the dough barely rises. The dough then rolls out dense and heavy, and the croissants bake up thick, tight, and bready instead of light with visible layers.

Kneading the dough too long at the start makes it very strong and stretchy. Later, when it is rolled and folded, the dough fights back and shrinks, so the layers press into each other and the baked croissants come out tough with fewer flaky pockets.

Letting the butter warm up or soften before it goes into the dough causes trouble. Soft butter squeezes into the dough instead of staying in flat sheets, so in the oven it melts straight into the dough and the croissants turn out more like soft rolls with almost no flake.

Rolling the shaped croissants too tight stretches and seals the layers together. In the oven, steam has no room to push them apart, so they puff only a little and end up small, dense, and chewy in the center.