Blind Baking
The process of pre-baking a pie crust without filling, ensuring a crisp crust that won't turn soggy.

Blind bake: Line crust with parchment, add weights, bake at 400°F (204°C) for 15 mins, remove weights, bake 5-10 mins more
Blind baking is the pastry technique of pre-baking a pie or tart crust before adding the filling. This step is critical in two situations: first, for pies with unbaked fillings (like chocolate silk, lemon meringue, or key lime) where the crust must be fully cooked second, for wet, custard-based fillings (like pumpkin or quiche) where the crust is partially baked first. Pre-baking sets the starch in the dough, forming a protective moisture barrier that prevents the wet filling from soaking into the raw pastry, avoiding the soggy bottom. To blind bake, the raw pastry dough is rolled out, fitted into the pan, chilled, lined with parchment paper, and filled with pie weights, dry beans, or rice.
The weights are necessary because without them, the oven heat will melt the fat in the crust too quickly, causing the steam to bubble up and the sides of the pastry to shrink and slump down the pan. After 15-20 minutes, the weights are removed to let the bottom brown.
Failing to chill the pie crust before blind baking, or removing the weights too early. This causes the fats to run quickly, causing the sides of the crust to shrink down and pool in the bottom of the pan.
Universally standard pie technique. Dry white rice or clean sugar can be used as effective pie weights, which can be reused for baking afterward.
Required for custard pies, quiches, fresh fruit tarts, cream pies, and any recipe with wet or unbaked fillings.