In a bowl combine flour, salt and sugar. Rub in cold cubed butter until mixture resembles fine breadcrumbs.
Stir in ice water, one tablespoon at a time, until dough just comes together. Shape into a disc, wrap and chill for 30 minutes.
Blind Bake
Preheat oven to 220°C (200°C fan). Roll dough and line a 23 cm pie pan. Freeze shell for 10 minutes. Line with baking paper and pie weights, bake 15 minutes. Remove weights and paper, bake 5 minutes more until pale gold.
Filling & Bake
Lower oven to 175°C (160°C fan). Whisk pumpkin puree, brown sugar, spices, salt, eggs and evaporated milk until smooth.
Pour filling into hot crust. Bake at 220°C for 15 minutes, then reduce to 175°C for 40–45 minutes until edges are set and center jiggles slightly.
Cool on a wire rack for at least 2 hours before slicing.
Notes
Make sure to chill the dough for a full 30 minutes for a flaky crust.If the pie cracks, bake at 10°C lower during the second stage to minimize surface fissures.Leftover slices can be frozen for up to 1 month; thaw overnight in the refrigerator before reheating.