Try this Blueberry Pie recipe.
Allowing the assembled pie to chill in the refrigerator for exactly 10 minutes before it enters the hot oven firms the fats in the pastry and prevents premature slumping of the fluted edges. Baking pie pastry requires shifting thermal zones properly. Starting the bake at 425 degrees Fahrenheit for 15 minutes sets the structure of the flour matrix, while dropping the temperature to 350 degrees Fahrenheit for the subsequent 30 minutes cooks the fruit filling without scorching the exterior wheat crust.
Adjusting this formulation for different pan sizes or larger gatherings requires careful attention to the fruit-to-flour ratio. Four to five cups of fresh blueberries demand precisely one-half cup of sifted all-purpose flour to absorb the high volume of moisture released during baking. When reducing the total yield by half for a smaller six-inch pan, maintain the exact ratios of salt, ground cinnamon, and nutmeg to preserve the spice profile, but decrease the baking duration by roughly 10 minutes to prevent over-thickening.
Allowing the pastry to cool for a minimum of 60 minutes before slicing lets the starch molecules gelatinize fully, which stops the filling from running across the plate.